The 512th Weekly Post of the CIES Football Observatory presents the results of a statistical model forecasting the probability of winning the title for clubs in 29 leagues. The model combines sporting variables (Impect data on passes in the opponent’s half), economic variables (transfer fees invested to recruit players fielded) and demographic variables (players’ last year minutes and their matches’ sporting level).

The highest likelihood in absolute terms was recorded for Serbia’s side Crvena Zvezda (76.2%), followed by France’s Paris St-Germain (73.0%) and South Africa’s Mamelodi Sundowns (70.6%). Conversely, among the 30 leagues analysed, the most open are the UAE Pro League (at most 23.5% chance of success for Shabab Al Ahli), the Italian Serie A (25.6% for Inter), and the Dutch Eredivisie (28.6% for Feyenoord).

In the Premier League, Liverpool has the highest probability of being crowned champions again (28.9%), ahead of Arsenal (18.8%) and Chelsea (16.2%). In La Liga, Real Madrid are the favourites (40.6% chance of winning the league), ahead of Barcelona (29.6%) and Atlético Madrid (22.1%). In Serie A, the top three are Inter (25.6%), Juventus (18.2%), and Napoli (17.4%). In Bundesliga, Bayern Munich stands out with 61.4%, ahead of Borussia Dortmund (8.8%).

>>> Full study

The 511th CIES Football Observatory Weekly Post analyses the financial results of transfer operations carried out in 2025. In total, clubs around the world invested approximately €14.2 billion, 14% more than the previous record set in 2023. This Post presents the balance sheets for the 121 teams worldwide involved in incoming or outgoing transactions totalling more than €50 million overall.

With around €500 million invested and €255 million received (including add-ons and sell-ons), Liverpool tops the rankings in terms of fees generated (€755m). Two other English teams complete the podium: Chelsea (€754m) and, further behind, Manchester City (€556m). In terms of net spending, the most negative balances were also recorded for English clubs : Manchester City (-€369 million), Arsenal (-€366m) and Liverpool (-€245m).

In contrast, three French Ligue 1 teams totalled the most positive net spending for transactions completed in 2025 : RC Lens (+€113m), Olympique Lyonnais (+€108m) and Monaco (+€95m). In terms of the number of fee-paying transfers, whether for revenue or expenditure, the most active clubs were AC Milan (37 deals), Juventus (33) and Chelsea (32).

>>> Full data analysis

The 510th Football Observatory’s Weekly Post presents the 200 footballers worldwide who have not yet turned 20 with the best CIES ratings for matches played in 2025. The score is the average of two values : a performance index calculated from the data exclusively collected by our partners Impect, and an experience index taking into account minutes played, weighted by the sporting level of the matches.

FC Barcelona’s prodigy Lamine Yamal tops the rankings with a CIES ratings of 97.7. The Spaniard has the highest value in terms of both performance and experience indices. He outranks his compatriot and teammate Pau Cubarsí, while PSG’s French international Warren Zaïre-Emery completes the podium. Roger Fernandes (SC Braga) is the highest-ranked footballer not playing in the big-5, just ahead of Geovany Quenda (Sporting CP, already signed by Chelsea).

The highest value for a footballer playing outside Europe was recorded for Elías Montiel (CF Pachuca). The Mexican ranks ahead of Brazilian Rayan Vitor (Vasco da Gama) and Argentine Santino Andino (Godoy Cruz). No fewer than 48 leagues are represented in the top 200. The three youngest players listed are Mexico’s Gilberto Mora (Club Tijuana), Poland’s Oskar Pietuszewski (Jagiellonia Bialystok) and Serbia’s Vasilije Novičić (IMT Belgrade).

>>> Top 200

More information on the performance index.

More information on the experience index.

The fourth Prospect Sheet from the CIES Football Observatory, in partnership with Impect, presents Brazilian striker Rayan Vitor, a product of Vasco da Gama, the club where he has played since the age of six. At just 19 years old, he is already in his third season at professional level, with a record nine goals in all competitions in 2025.

A technically skilled left-footed player who is fast, powerful, and elegant, Rayan primarily plays as a right winger, but can perform well in any attacking position. He is particularly active at finishing level, but also makes significant contributions in terms of creating chances and aerial play (he is 185cm tall).

Despite a contract expiring at the end of 2026, his transfer value estimated by the CIES Football Observatory’s statistical model is between €19.6 and €25.3 million, depending on the financial strength of the potential buyer club. A possible extension would significantly increase this amount. Without renewal, however, his value is likely to decrease, even if he continues to perform well.

>>> Full Rayan’s profile

>>> The other profiles published

The third Prospect Sheet compiled by the CIES Football Observatory in collaboration with Impect highlights a young centre back with a great future: Luka Vušković. Aged just 18.4, the Croatian has already played two full seasons as a professional between his training club Hajduk Split, Polish side Radomiak Radom and Belgian side Westerlo.

His last season in Belgium was particularly successful, with 36 Pro League games and no fewer than 7 goals. His performances earned him a move to his parent club Tottenham Hotspur. Already estimated at €40 million by the CIES Football Observatory’s statistical model, his transfer value is destined to rise with every game played in the Premier League.

From a technical point of view, Luka Vušković has the profile of an aerial center back with attacking ability, his power being combined with outstanding technical quality. Players with similar characteristics quoted in the report include Germany’s Yann Aurel Bisseck, Ecuador’s Piero Hincapié and England’s Trevoh Chalobah.

>>> Full report

The second issue of the CIES Football Observatory Prospect Sheet, developed in collaboration with Impect, features Portuguese talent Rodrigo Mora. Born in 2007 like Lamine Yamal, the FC Porto’s attacking midfielder achieved an impressive professional career start, scoring ten goals in the Primeira Liga and earning his first call-up to the senior national team, where he should soon make his official debut.

With a contract valid until 2030, Rodrigo Mora’s transfer value, as estimated by the CIES Football Observatory’s statistical model, has already reached €53.4m for a top-flight club. This value is set to increase with his future performances, and could quickly exceed the €70m buy-out clause negotiated at the time of his recent contract extension.

From a technical profile standpoint, Rodrigo Mora is particularly active in terms of finishing and take on, making him a shooting attacking midfielder with take on ability. Among the footballers with similar characteristics mentioned in the report, notably are another highly coveted player in the ongoing transfer window, Nigeria’s Ademola Lookman, and Brazil’s Philippe Coutinho.

>>> Full report

>>> Report glossary

The CIES Football Observatory is breaking new ground by launching a new publication format entitled Prospect Sheet, which provides a broad but synthetic overview of the characteristics of the world football’s most promising players in biographical (career trajectory), economic (transfer value) and technical terms (playing profile based on the data exclusively supplied by our partners Impect).

Germany striker Nick Woltemade, recent top scorer and finalist of UEFA European U21 Championship, was chosen as the first young talent to be highlighted. The VfB Stuttgart player stands out for his great skills not only in terms of finishing, but also of aerial play - thanks in particular to his height (198 cm) - and chance creation, making him a very complete and modern centre forward.

His transfer value, estimated by the CIES Football Observatory’s statistical model at €56.9 million for a top European club, is in line with the fee offered by Bayern Munich according to press rumours. However, as his contract does not expire until 2028, another top-class season would allow Stuttgart to cash in on a sum equivalent to or even greater than that in a year’s time, while helping this outstanding talent to blossom once and for all.

As often, the player’s wishes will be decisive, with pros and cons both in the choice to stay at Stuttgart and in that of eventually joining an even more competitive club. In either case, Nick Woltemade can certainly dream of taking part in the 2026 World Cup, and not just as a substitute, by competing in particular with one of the five players with a similar profile listed in the document : his compatriot Kai Havertz.

>>> Prospect Sheet

>>> Metrics explanation

Issue number 509 of the CIES Football Observatory Weekly Post ranks the agencies representing Europe’s big-5 league players according to the aggregate transfer value of their clients as per our exclusive statistical model. According to publicly available information, one agency manages the careers of players worth more than two billion euros : the CAA Stellar/Base group, the result of a consolidation process led by the Americans of Creative Artists Agency.

Two other agencies represent players with a combined transfer value in excess of €1 billion : the Portuguese of Gestifute and another American company, also based in Los Angeles, Wasserman Group. Like CAA, Wasserman Group has acquired a dominant position in the player representation market through the purchase of a number of smaller but influential agent companies, both in Europe and beyond.

Both CAA Stellar/Base and the Wasserman Group represent the interests of more than 100 players from the five major European leagues, making them essential companies for clubs. Gestifute, on the other hand, focuses on a smaller elite of players. Only agencies representing at least two players from the big-5 have been included in the rankings. Agents who only represent members of their family have not been taken into account either.

>>> Top 100

The 508th CIES Football Observatory Weekly Post presents the 100 teams in the world with the most subscriptions on the following social networks : X, Instagram, Facebook, TikTok and YouTube. The Spanish side of Real Madrid tops the list with over 470 million subscriptions, just ahead of their great rivals Barcelona (424 million).

All the other clubs are much further behind. Manchester United completes the podium with 234 million, while Paris St-Germain is fourth with 199 million. In the top 10 are four other English teams (Manchester City, Liverpool, Chelsea and Arsenal), one German (Bayern Munich) and one Italian (Juventus).

The podium for non-European clubs is made up of Brazil’s Flamengo, Saudi Arabia’s Al-Nassr and Egypt’s Al-Ahly. The Post also presents the trends recorded since June 2024 (without YouTube). In relative terms, the biggest increase among the top 100 clubs was registered for Santos (+82%), certainly thanks to the recruitment of star player Neymar.

>>> All the data

Following the extension of his contract until 2031, FC Barcelona’s prodigy Lamine Yamal has become the player with the highest value on the transfer market according to the CIES Football Observatory statistical model: €402.3 million. This extraordinary figure is linked to equally extraordinary performances achieved at an age - 18 in July - when most players, even the best, are just starting out at professional level. Top 100 here.

Norway’s Erling Haaland (€239.6m) and England’s former leader Jude Bellingham (€233.8m) complete the podium of the best-valued players, ahead of Frenchman Kylian Mbappé (€192.5m), who also is the oldest player in the top 10 (26.5 years). The English Premier League is by far the most represented in the top 100 (42 players), followed by the Spanish Liga (19). Paris St-Germain, on the other hand, is the most represented club (11 players).

The highest values for defensive positions were recorded for Bart Verbruggen (€64.3m) among goalkeepers, Pau Cubarsí (€118.0m) for centre backs and Joško Gvardiol for full/wing backs (€100.7m). Only four of the top 100 footballers play outside the five major European leagues : two in Portugal (Samu Aghehowa and Viktor Gyökeres), one in Brazil (Estêvão Willian, already contracted by Chelsea) and one in Saudi Arabia (Jhon Durán).

>>> Top 100

The 506th CIES Football Observatory Weekly Post presents the most influential footballers of the season in 60 leagues around the world. The index used to rank the players is calculated on the basis of their performances in six areas of the game thanks to the data exclusively produced by our partners Impect, the minutes played and the results obtained.

The highest score overall was recorded for Mohamed Salah, ahead of two Barcelona players: Lamine Yamal and Pedri González. Two other Liverpool footballers top the list for defensive positions: Virgil van Dijk and Trent Alexander-Arnold. Florian Wirtz (Bayer Leverkusen) heads the rankings for attacking midfielders, while Kylian Mbappé is ahead of Viktor Gyökeres for centre forwards.

The six areas of the game considered are aerial play (with Alexander Sörloth at the top of the list), ground defence (Moisés Caicedo), distribution (Nico Schlotterbeck), take on (Vinícius Júnior), chance creation (Lamine Yamal) and finishing (Ousmane Dembélé). Yamal aside, three other U20s feature among the 300 players listed (50 per position): Estêvão Willian (Palmeiras, on loan from Chelsea), Pau Cubarsí (Barcelona) and Jorrel Hato (Ajax).

>>> Top 50s per position

>>> More on demand

Issue number 505 of the CIES Football Observatory Weekly Post presents the top 100 of associations having exported the greatest number of footballers to 135 leagues around the world between 2020 and 2025. With no fewer than 3,020 distinct expatriates, Brazil is ahead of the last two World Cup winners : France (2,293) and Argentina (2,171).

In the top ten is a third South American country, Colombia, an African nation, Nigeria, and five additional European ones : England (notably due to the strong presence of English players in other British associations), Spain, Germany, Serbia and Croatia. The biggest increase between 2020 and 2025 in absolute terms was recorded for France (+372 expatriates), followed by Argentina (+216) and Nigeria (+181).

The 100th Monthly Report presents in greater detail the trends in the number of expatriates for the main exporting nations, as well as the main destinations and changes observed. Also available free of charge, the Migration Atlas is a valuable tool for understanding the global geography of footballer flows. For all these studies, the origin of the players was established on the basis of the association where they grew up.

>>> Post

>>> Report

The 504th edition of the Weekly Post presents the 100 players who changed clubs permanently during the last two transfer windows and whose current value would enable the teams owning them to make the biggest capital gains. Top of the list is Kylian Mbappé, who was signed for no transfer fee by Real Madrid last summer and is now valued at €182.5 million by the CIES Football Observatory statistical model.

Bournemouth centre back and new Spanish full international Dean Huijsen comes second with a potential capital gain of €68.5 million, although this does not take into account any eventual buy-out clauses negotiated last summer when he signed his contract with the English side. Manchester City’s Brazilian winger Savinho, also recruited a year ago at an affordable price, rounds off the podium with a potential capital gain of €59.9 million.

In the top five also are Frenchman Michael Olise (+€47.8 million) and Italy’s Moise Kean (+€41.7 m). To the extent of the information available, the sums mentioned take into account all add-ons regardless of their effective payment, as well as the eventual sell-on fees negotiated by previous clubs. All the details on the CIES Football Observatory’s statistical model to asses players’ transfer values can be found in this scientific article.

>>> Top 100

The 503rd CIES Football Observatory Weekly Post ranks teams from 65 leagues around the world according to the percentage of domestic league minutes in the current season played by footballers aged 21 or under at the time of the matches. Among the seven teams having fielded U21 players for a majority of minutes notably are RC Strasbourg (4th, 59.4%) and RB Salzburg (5th, 55.3%).

Across all leagues, not including B-teams, the highest value was recorded for the Belgian side Lommel SK (69.4%), a club owned by City Group. The top three in the European big-5 are RC Strasbourg, FC Barcelona and Stade de Reims. Outside Europe, the three teams putting the most faith in young players are Uruguay’s River Plate, Colombia’s Envigado and Uzbekistan’s Sogdiana.

The Post also presents the percentage of minutes for the 22-25, 26-29 and 30 or over age categories. With 98.8% of league minutes played by footballers aged 25 or under at the time of the matches, BlueCo’s RC Strasbourg holds the world record for youth. The Demographic Atlas presents more data exclusively developed by the CIES Football Observatory for clubs from 50 leagues around the world.

>>> Full data

The CIES Football Observatory is delighted to announce a new partnership with the German data company Impect, a leader in the field of football analytics. This partnership will enable us to develop exclusive content for our website and social media, providing football fans with free analysis of an unrivalled level of sophistication on the performance of clubs and players around the world.

A first example is already available in the 502nd Weekly Post, which presents the 100 outfield players who have not yet turned 20 from 45 leagues outside the big-5 with the best values in terms of Impect PxT (Packing Expected Threat model), weighted by the sporting level of the matches played according to this method. The PxT measures the value of players’ actions in terms of increasing or decreasing the probability of scoring or conceding a goal.

Attacking midfielder Rodrigo Mora (Porto), who turns 18 in a few days’ time, is top of the table. The Portuguese is ahead of Argentinian Franco Mastantuono (River Plate) and his teammate Martim Fernandes. The Post also presents the estimated transfer values of the players in the top 100, with a maximum of €52.7 million for Jorrel Hato (Ajax). Only footballers who have played at least 450 minutes and 25% of domestic league playing time in the current season have been taken into account.

>>> Top 100

The 501st CIES Football Observatory Weekly Post compares 65 leagues around the world in terms of the tenure of coaches at the head of the teams currently managed. On average, three quarters of coaches have been in place for less than a year (75.3%). This percentage rises to 100% in the top divisions of Costa Rica, Ecuador and Mexico.

With 19 coaches in place for less than a year out of 20, Italian Serie A has the lowest rate of any of the European competitions analysed. The only exception is Inter coach Simone Inzaghi. In contrast, in the Dutch Eredivisie, 7 out of 18 coaches have been in charge of their team for a year or more, a record for Europe’s top divisions.

In terms of the average tenure at the head of the clubs managed, the figures range from 2 years and 67 days in the German Bundesliga to just 88 days in Costa Rica’s Primera División. The German record is partly due to the exceptional case of Frank Schmidt, who has been in charge of Heidenheim’s first team for almost 18 years. Diego Simeone (Atlético Madrid) and Brian Schmetzer (Seattle Sounders) round out the podium of longest-serving coaches.

>>> Full data

Thirteen years after the first issue, the CIES Football Observatory research team is very proud to present its 500th Weekly Post ! For the occasion, we highlight the footballers born in 2001 or later who have played the most official matches in senior competitions since the start of their careers, by year of birth.

With no fewer than 379 official matches at senior competition level, Rodrygo (Real Madrid) ranks first among players born in 2001. The following footballers have accumulated the most appearances for the other years of birth : Eduardo Camavinga (2002), Jude Bellingham (2003), Ângelo Gabriel (2004), Vitor Roque (2005), Endrick Felipe (2006), as well as Lamine Yamal (2007 onwards).

The Post also presents the average number of games per year since the start of the player’s career. With an average of 59.7 games per year since his debut, Lamine Yamal leads all years of birth combined. The Barcelona prodigy is ahead of Pau Cubarsì (59.0) and João Neves (55.0). By year of birth, the leaders are Jason Knight (2001), Joško Gvardiol (2002), Jude Bellingham (2003), João Neves (2004), Malick Fofana (2005), Jorrel Hato (2006) and Lamine Yamal (2007 onwards).

>>> All the data

>>> All the studies

The 499th Weekly Post presents the 100 best performing goalkeepers in the world over the past year, according to an index on a scale of 100 specifically devised by the CIES Football Observatory*. The top three are Paris St-Germain’s Italian Gianluigi Donnarumma, Inter’s Swiss Yann Sommer and Real Madrid’s Belgian Thibaut Courtois.

Two players from outside the big-5 European leagues feature in the top ten : 23-year-old Russian Stanislav Agkatsev (FK Krasnodar) and Brazilian veteran João Ricardo (Fortaleza EC). They also are the two goalkeepers in the top 10 whose percentage of saves as per Wyscout data most exceeded expectations with respect to the goals conceded by their teams.

On average, the goalkeepers in the top 100 are 29.9 years old, with a high of 41.4 years for Remko Pasveer (AFC Ajax) and lows of 20.1 years for Ármin Pécsi (Puskás Akadémia) and 20.8 years for Slawomir Abramowicz (Jagiellonia Bialystok). Agkatsev aside, only one player who has not yet turned 26 ranks in the top twenty : Djordje Petrović (RC Strasbourg, on loan from Chelsea).

* The index is based on the sporting level of matches played according to this methodology, the results of the games, as well as the deviation in the percentage of saves at domestic league level compared to the expected value given the defensive strength of employer teams. Only goalkeepers with a positive gap on this last criterion feature in the ranking (minimum 20 league matches over the last 365 days).

>>> Top 100

The 498th CIES Football Observatory Weekly Post ranks more than 900 clubs in 55 leagues worldwide according to a territorial anchorage index calculated from the proportion of national players and club-trained nationals among those fielded in the domestic league over the last year*. The Colombians of Envigado lead the way with 93.8% nationals and 54.2% club-trained nationals.

The Basques of Athletic Club and the Ukrainians of Dynamo Kyiv complete the podium, while the third highest-ranked European team, CA Osasuna, is only seventeenth. Latin American teams are over-represented among the most locally anchored ones. Paraguay’s Club Libertad are fourth, ahead of Mexico’s Chivas Guadalajara and Colombia’s Millonarios Bogota.

Another Colombian club (Atlético Nacional), two Argentinians (CA Belgrano and Vélez Sarsfield) and one Venezuelan (Caracas FC) also are in the top ten. For Asian clubs, the podium is made up of Sanfrecce Hiroshima (23rd), Uzbekistan’s FC Nasaf (24th) and another Japanese team : Kashiwa Reysol (28th). Adelaide United tops the table for Australia and Seattle Sounders for the MLS.

* Nationals are players who have grown up in the association of their home club, while club-trained nationals are those who have played for at least three seasons between the ages of 15 and 21 in their club of employment. The index is calculated on the basis of the gap from the general average for these two variables. Data refer to the last year or, for a few newly-promoted clubs, to the current season.

>>> All data

>>> Last year rankings

In this Weekly Post, the CIES Football Observatory analyses the differences observed over the last year between 63 leagues worldwide in terms of referees’ propensity to hand out penalty cards for fouls. Referees in Japan’s top two divisions are the least likely to issue cards for fouls (around one penalty card every ten fouls), while the opposite is true in Chile and Colombia (around one card every five fouls).

These gaps reflect both different degrees of severity in refereeing styles and discrepancies in the tendency of players to commit gross fouls. The Latin American leagues stand out for their harsh refereeing styles and the propensity of footballers to play violently, with the two phenomena feeding off each other, in contrast to Asia, where referees are less severe and players more disciplined.

The Post also presents the proportion of cards issued for fouls, with a maximum of 93.2% in the Ukrainian Premier League and a minimum of 59.2% in the Bolivian Primera División, where disputes and other forms of indiscipline are commonplace. The latter situation was also observed in the Brazilian Serie A (only 60.7% of penalty cards handed out for fouls), as well as in the top two tiers of Turkish football.

>>> Full data

The 496th CIES Football Observatory Weekly Post ranks the teams of 37 leagues around the world according to the percentage of ‘minutes secured’, i.e. the share of the current season’s domestic league minutes played by footballers still under contract with a duration beyond the year 2026. Chelsea tops the list with 91.8% of minutes secured.

Monaco (91.3% of minutes secured) and AZ Alkmaar (89.2%) complete the podium of teams whose squad planning is most likely to bring stability in the coming years or, in the event of transfers, to generate substantial capital gains. Spain’s Real Sociedad (88.4%) and France’s Paris St-Germain also are in the top five positions.

The latter team has the highest value among UEFA’s Champions League quarter-finalists, ahead of another club well prepared for the future: Arsenal (85.8%). AZ Alkmaar aside, two other teams outside the five major European leagues feature in the top ten: Russia’s Zenit St. Petersburg and England Championship’s Coventry City.

>>> Data for all teams in the 37 leagues

The 495th CIES Football Observatory Weekly Post presents the world’s 100 best performing players from an attacking perspective in terms of their statistics in three areas of the game : take on, chance creation and finishing. Michael Olise tops the rankings with an average index of 88.5 in these three domains and a maximum value of 99 in chance creation.

The Bayern Munich’s French international is ahead of Barcelona’s Spaniard Lamine Yamal (87.7) and Bayer Leverkusen’s German Florian Wirtz (85.0). The top 10 also includes two Brazilians (Vinícius and Savinho), two Frenchmen (Ousmane Dembélé and Désiré Doué), an Englishman (Bukayo Saka), an Egyptian (Mohamed Salah) and a Dutchman (Noa Lang).

The latter is the top-ranked player active outside the big-5 European leagues. He is ahead of Estêvão Willian (Palmeiras, on loan from Chelsea) and Rodri Sánchez (Al-Arabi). The oldest players in the top 100 are Iago Aspas (Celta Vigo), Karim Benzema (Al-Ittihad) and Yacine Brahimi (Al-Gharafa). Only footballers who played at least 1,080 minutes during the current season were taken into account.

* This report provides more information on the CIES Football Observatory’s performance indices elaborated from Wyscout data.

>>> Top 100

Issue number 494 of the CIES Football Observatory Weekly Post presents the 100 players from outside the big-5 European leagues whose transfer value has risen the most over the last six months. At the top of the list is Porto’s Spanish striker Samu Aghehowa, second top scorer in the Portuguese top flight, with an increase of €39 million (from €29.6m to €68.6m).

Palmeiras’ new Brazilian full international Estêvão Willian, owned by Chelsea, comes second with an increase of €30 million (from €30m to €60m). Benfica’s Spaniard Álvaro Carreras completes the podium (+€28m) ahead of teammate Tomás Araújo (+€25m). Three other players active in Portugal are in the top 10 (Conrad Harder, Geovany Quenda and Roger Fernandes), along with Antoni Milambo (Feyenoord), Jan-Carlo Simić (Anderlecht) and Mika Godts (Ajax).

All estimates have been calculated on the basis of a statistical model developed exclusively by the CIES Football Observatory research team, built on almost 10,000 paid transactions, as detailed in this scientific paper. This tool presents the best-valued players per team in 65 leagues worldwide. A paying platform with weekly valuations of over 30,000 players is also available for professionals in the game.

>>> Top 100

To celebrate its twenty years of existence and pay tribute to the clubs developing the talent that makes us love football, the CIES Football Observatory is very proud to present a study of the teams that have trained* the most players fielded in Europe’s big-5 over the last two decades. The top three are Real Madrid (166 players), Barcelona (156) and Paris St-Germain (111).

Olympique Lyonnais and Manchester United (both with 103 players) are at the foot of the podium, followed by Stade Rennais and Atalanta (94). Among the teams outside the big-5, the three having trained the most footballers who have played in the five major leagues since 2005/06 are Ajax (73 players), Sporting CP (64) and River Plate (51). Boca Juniors (49 players) and Benfica (45) are also in the top 5.

To celebrate twenty years of hard work, the CIES Football Observatory research team has also prepared a more in-depth study, published as the 99th Monthly Report, notably including details of the footballers trained by team and a map of all the big-5 clubs in which they have played. Enjoy the read and thank you for your interest!

* Training clubs are defined as the first teams where footballers have played for at least three years between the seasons of their fifteenth and twenty-first birthdays (seasons of these birthdays included).

>>> Weekly Post

>>> Monthly Report

Using technical data collected by our partners Wyscout, the CIES Football Observatory has developed various synthetic indices on a base of 100 to measure the level of performance of players in six areas of the game (more details here). This Weekly Post presents the hundred U23 midfielders from 46 leagues around the world with the highest values in ground defence (see below).

Borussia Mönchengladbach’s Rocco Reitz has the highest score. The German is ahead of another big-5 league player, Barcelona’s Spaniard Marc Casadó, and Genk’s Guinean Ibrahima Sory Bangoura. After a season in the reserve team, Bangoura is emerging as a potential transfer candidate to an even bigger club. Two other players from outside the big-5 are in the top 10: Amine Lachkar (Willem II) and Nick Fichtinger (Zwolle).

Tenth overall, Las Palmas’ Portuguese Dário Essugo (on loan from Sporting CP) has the highest score among players who have not yet celebrated their twentieth birthday. The three youngest players in the top 100 are Frenchmen Ayyoub Bouaddi (LOSC Lille) and Warren Zaïre-Emery (Paris St-Germain), as well as Swede Lucas Bergvall (Tottenham). Of the 46 leagues analysed, 32 are represented by at least one player in the top 100.

The ground defence index is calculated by adding up the defensive duels won by players below elbow height, pass interceptions and anticipations on loose balls (without clear possession) in relation to the average values measured at team and position level (on a pro rata basis of the different positions played). The value obtained is corrected by the success rate of ground duels undertaken and the sporting level of the matches played.

>>> Full rankings

The 491st CIES Football Observatory Weekly Post presents the U25 players who are sportingly the most deserving for a senior national team debut. The rankings were established on the basis of a performance index* specifically designed by our research team using Wyscout data. They include the ten players with the highest performance scores from 50 nations around the world.

For the major nations, the following U25 non-full international footballers are considered the most deserving: Santiago Hezze (Olympiacos, Argentina), Jarne Steuckers (Genk, Belgium), Murillo (Nottingham Forest, Brazil), Elliot Anderson (Nottingham Forest, England), Hugo Ekitike (Eintracht Francort, France), Nico González (Manchester City, Spain), Yann Aurel Bisseck (Inter, Germany) and Marco Carnesecchi (Atalanta, Italy).

For all the players listed, the Post also presents the estimated transfer value according to the CIES Football Observatory’s statistical model, based on the assumption of an international debut. In this case, the five highest values were recorded for Jamie Gittens (England, €74.2m), Désiré Doué (France, €62.9m), Santiago Castro (Argentina, €60.5m), Archie Gray (England, €56.6m) and Dean Huijsen (Spain, €51.2 m)

* The index is based on the footballers’ playing time over the last year, the sporting level of the matches played and the players’ performances in six areas of the game (method here).

>>> Full data

>>> Any organisation interested in our services is invited to contact us to find out more about all the possible applications of the multiple procedures developed.

In the last two transfer windows, only one team has had a negative net spending* of more than €250 million: Brighton & Hove. Now firmly established in the Premier League, the English club recorded a deficit of €197 million during last summer and €56 million this winter. Premier League newly-promoted Ipswich Town and Saudi Arabia’s Al-Nassr round out the podium of the teams with the worst balance sheets. All the data is available free of charge here.

In the other European big-5 leagues, the biggest deficits were recorded by Atlético Madrid (-€116m) in Spain, AS Roma (-€111m) in Italy and Bayern Munich (-€63m) in Germany. Manchester City totalled the biggest win last summer (+€157m) and the greatest loss in the transfer window that has just ended (-€226m). In terms of spending, Brighton & Hove (€317m) are ahead of Chelsea (€310m) and Manchester City (€278m).

An English club tops the list also in terms of the most positive results: Leeds United (+€132m). Another team relegated from the Premier League with a squad featuring many young players highly rated on the transfer market ranks in the top three: Burnley FC (+€101m). RC Lens is second (+€106m), while Benfica (+€92m) and Porto (+€82m) are just off the podium.

* All figures include any add-ons regardless of their effective payment or receipt, as well as fees earned from sell-ons. Loans with a non-conditional obligation to buy have also been considered.

>>> Full data for the 100 clubs with the highest transfer fee volumes

Issue number 489 of the CIES Football Observatory Weekly Post forecasts the results up to the end of the season of teams in 42 leagues around the world according to their performance level. The latter was measured on the basis of a statistical model including the number and location of the passes and shots made and conceded so far by teams (Wyscout data), regardless of the results obtained.

In the five major European leagues, the best progress in terms of points per match should come from Toulouse and Monaco in Ligue 1 (with Auxerre and Strasbourg at the opposite end), Borussia Dortmund in the Bundesliga (RB Leipzig at the opposite), Cagliari and Como in Serie A (Empoli at the opposite), Tottenham and Manchester City in the Premier League (Newcastle at the opposite), as well as Girona and Getafe in La Liga (Leganés at the opposite).

Across all leagues, the greatest positive gaps between the points per match achieved so far and those predicted up until the season end were measured for Bulgaria’s CSKA Sofia (+0.66), United Arab Emirates’ Al-Wasl FC (+0.54) and Cyprus’ APOEL FC (+0.5). Conversely, Serbia’s FK Mladost (-0.62), the Emiratis of Ittihad Kalba (-0.52) and Saudi Arabia’s Al-Riyadh SC (also -0.52) are expected to experience the biggest drops in form.

>>> Full data

The 488th CIES Football Observatory Weekly Post presents the 100 players who have scored the most goals in official club or national team matches (senior, U23 or U21) over the last year. Sporting CP’s Swede Viktor Gyökeres is clearly at the top of the list with no fewer than 64 goals: 54 for his club and 10 at national team level.

Erling Haaland (Manchester City and Norway) and Harry Kane (Bayern Munich and England) complete the podium with 52 and 47 goals respectively. In terms of goal frequency, the top three are Irishman Garbhan Coughlan of Cashmere Technical in New Zealand (one goal every 43 minutes), Japan’s Tomoyuki Doi of Geylang United in Singapore, and Uruguay’s Martín Cauteruccio of Sporting Cristal in Peru.

The Post also presents the rankings for the last two and three years. Over the last two years, nobody has scored more goals than Erling Haaland (101), while Kylian Mbappé tops the last-three-year list with 147 goals. The youngest player in last year’s top 100 is the Spaniard Chupete (Atlético Malagueño), while the evergreen Cristiano Ronaldo (Al-Nassr and Portugal) is the oldest.

>>> Full data

The 487th CIES Football Observatory Weekly Post presents the U23 players not yet in Europe’s big-5 who are most ready to take the next step in their careers. The selection is based on an index considering the footballers’ playing time over the last year, the sporting level of matches played, as well as their performances in six game areas (Wyscout data).

Sporting CP’s Belgian full international Zeno Debast tops the table with an index of 87.5 out of 100. Another centre back, PSV Eindhoven’s Dutchman Ryan Flamingo, ranks second, while his teammate Malik Tillman (86.2) round up the podium. Ukrainian Georgiy Sudakov (Shakhtar Donetsk) is fourth, ahead of Portugal’s Álvaro Carreras (Benfica). Sixth-placed Brazilian Wesley França (Flamengo) is the top-ranked player outside Europe.

The Post presents the overall top 100, as well as the ten highest-ranked players in 60 leagues worldwide. The following footballers head the rankings in their respective league: Christos Tzolis (Belgium), Manfred Ugalde (Russia), Mario Mitaj (Saudi Arabia), Martin Vitík (Czech Republic), Oscar Gloukh (Austria), Victor Guzmán (Mexico), Thiago Fernández (Argentina) and Semih Kiliçsoy (Turkey). For all players, the Post also unveils the estimated transfer value.

>>> Full data

>>> More information on the technical analysis of performance

>>> Scientific paper on the statistical model for transfer estimates