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Vertical play masters: best U23s

Thanks to the data meticulously collected by our partner Impect, this Weekly Post presents the U23 players from 52 leagues around the world who are most skilled at advancing their team’s play with passes towards the opposition’s goal*. The study reveals the extraordinary abilities of Belgium’s Jorne Spileers, who completes an average of 11.8 ‘progressive’ passes per 90 minutes, with a record success rate of 84% and a progression index of 100.

Two other centre backs complete the podium: Spain’s Dean Huijsen (Real Madrid) and Portugal’s António Silva (Benfica). Fourth, Norway’s Häkon Volden (Rosenborg) is the youngest player in the top 10 (18.5 years). Two other players under the age of 20 feature in the overall top 10: Gambia’s Abubacarr Sedi Kinteh (Tromsø) and France’s full international Warren Zaïre-Emery (Paris Saint-Germain).

Among wide backs, the top three are Álvaro Carreras (Real Madrid), Michal Gurgul (Lech Poznań) and Joaquin Seys (Club Bruges), with Luca Bombino (San Diego) being the youngest in the top 50. For midfielders, Jack McGlynn (Houston Dynamo) leads the way ahead of Warren Zäire-Emery (PSG) and Amadou Koné (Neom SC). The youngest midfielder in the top 50 is Argentina’s Álvaro Montoro (Botafogo).

* At least 30 meters if starting and finishing position in own half, 15 meters if in different halves and 10 meters if in opponent half.

>>> Full data

>>> More about Impect

Player trading champions: Eintracht at the top

The 523rd CIES Football Observatory Weekly Post presents the world’s smartest clubs on the transfer market since January 2021 in terms of the financial balance sheets of players recruited as professionals (i.e. excluding youth academy signings) and already permanently transferred to other teams. Eintracht Frankfurt tops the list with a positive balance of +€286m : €364m in revenue and €78m in expenditure.

The Germans are ahead of Brighton & Hove (+€221m) and Stuttgart (+€178m). Atalanta (+€150 million) and Benfica (+€147 million) round out the top five. In contrast, the most negative trading balances for players signed and transferred over the last five years were recorded for two Saudi clubs, Al-Hilal (-€197m) and Al-Nassr (-€104m), followed by three English teams : West Ham (-€99m), Aston Villa (-€85m) and Manchester United (-€74m).

If we add fist team squad recruits since 2021 who are still under contract with their signing clubs, and subtract their acquisition price from the current estimated value according to our statistical model, Eintracht Frankfurt is once again the best club with a balance of +€670m (+€286m for players recruited and already sold ; +€384m for those recruited and still owned), ahead of Real Madrid (+€591m), with Manchester United at the opposite end (-€482m).

* The rankings only include clubs whose total transfer spending and income since 2021 exceeds €10 million. The balance sheets take into account add-ons regardless of whether they have actually been paid or received, as well as sums earned through sell-ons.

>>> Full data

Best development leagues for young domestic players

The 522nd CIES Football Observatory Weekly Post ranks 50 top divisions worldwide according to the percentage of minutes played by U21 footballers eligible for the national team of the league’s country over the 2025 calendar year. The Australian A-League Men’s leads the rankings (17.7% of minutes).

Serbia’s Super Liga (15.8%) and Danmark’s Superliga (11.7%) round up the podium of the leagues where U21 eligible footballers played the greatest proportion of minutes in 2025. Among the five major European leagues, the figures range from 7.8% for France’s Ligue 1 (17th overall) to 1.9% for Italy’s Serie A (second lowest figure), with a particularly low rate also in the English Premier League (2.4%).

The Post also presents the number of U21 players eligible for the countries of the 50 leagues analysed who played in one of these championships in 2025. In this case, Argentina (213 U21 eligible players for a total of 112,455 minutes and a cumulative experience* of 74,236) is ahead of Colombia (185, 88,706 minutes, 50,047) and Brazil (173, 73,325 minutes, 44,558). France is fourth in terms of number of players and minutes and third in terms of cumulative experience.

* The cumulative experience was calculated by weighting the total number of minutes by the average sporting level of the matches played according to this method.

>>> Full study

>>> Video resuming the eight first Prospect Sheets with Impect on the best talents worldwide (all Sheets)

Projected merit-based salary: Mbappé!

The 521st CIES Football Observatory Weekly Post presents the 100 players in the world who should earn the highest salaries according to a statistical model* taking into account sporting variables over the last year (playing time, sporting level of matches and rate of games in the starting 11), as well as the primary position played. Kylian Mbappé tops the list with an estimated deserved gross annual salary of €22.8 million (fixed part only).

This amount is 40% lower than that received, thanks to the fact that Real Madrid did not have to pay a transfer fee when he was signed in the summer of 2024, as well as the superstar effect allowing star players to monetise their status beyond their sporting performances. Mohamed Salah and Jude Bellingham complete the podium of the players deserving the highest salaries with respect to the variables included in our model.

Offensive players earning generally more than players in other positions, centre forwards and wingers are overrepresented at the top of the rankings. For other positions, Thibaut Courtois ranks first among goalkeepers, Virgil van Dijk among centre backs, Achraf Hakimi among full backs, João Neves among central or defensive midfielders, while Dominik Szoboszlai is second only to Jude Bellingham among attacking midfielders.

*Built on almost 2,000 salaries negotiated by players for permanent transfers or contract extensions, the CIES Football Observatory proprietary statistical model used in this study explains 83% of the differences in the amounts observed.

>>> Top 100

>>> New Prospect Sheet with Impect : Kader Meïté (Stade Rennais)

Top valued teenagers: Yamal & co

The 520th CIES Football Observatory Weekly Post presents the players who have not yet celebrated their 20th birthday with the highest transfer value according to our statistical model. In four cases, the estimate exceeds €100 million (with add-ons and for 100% of rights) : Lamine Yamal (€350 million), Estêvão Willian (€118 million), Pau Cubarsí (€113 million) and Franco Mastantuono (€102 million).

The top ten also includes Frenchman Warren Zaïre-Emery (Paris Saint-Germain), Arsenal’s Ethan Nwaneri and Myles Lewis-Skelly from England, Portugal’s Geovany Quenda (Sporting CP, already signed by Chelsea), another Brazilian, Endrick Felipe (Real Madrid), and Sweden’s Lucas Bergvall (Tottenham).

In total, 113 teenagers playing in 25 leagues and 80 clubs around the world are estimated to be worth at least €10 million. The English Premier League is the best represented (23 players), ahead of the German Bundesliga (16) and the French Ligue 1 (11). This exclusive tool presents the most valuable player per team in 67 leagues.

<<< full list

International training product: France at the top

Issue number 519 of the CIES Football Observatory Weekly Post presents the 50 nations in the world whose clubs have generated the most revenue over the last ten years from the international transfer of players trained in the country (including add-ons and sell-ons). France is clearly in the lead with €3.98 billion, an average of almost €400 million per year.

Clubs in two other countries have generated more than €2 billion from the international transfer of locally trained players over the last decade : Brazil (€2.60 billion) and Spain (€2.24 billion). Revenues exceeded €1 billion in six other countries : five European (Portugal, the Netherlands, England, Germany and Italy) and Argentina.

Transfers of players aged 20 or under account for almost one third of total revenue. Among the top 20 nations, this percentage is particularly high for Serbia (64.7%), Brazil (50.1%), Denmark (48.4%), Sweden (47.9%) and Belgium (43.8%). These figures reflect the early international transfer of players trained in these countries.

>>> Full data

The CIES Football Observatory is also happy to disclose its 7th Prospect Sheet in collaboration with Impect highlighting the great KRC Genk’s talent Konstantinos Karetsas.

Best football academies: Benfica at the top

As every year, the CIES Football Observatory has identified the clubs having trained* the players currently active in 49 leagues around the world to establish a ranking of the clubs with the best academies. The 518th Weekly Post presents the top 100 according to a training index taking into account the number of players trained, the level of the clubs they played for last year and the official game minutes played over the same period.

As last year, Benfica ranks first with 93 players trained active in the 49 leagues analysed, an average level of employment clubs of 0.81 and 2,582 minutes played on average in official matches over the last year. Barcelona (76 players, average club level of 0.87 and 2,773 minutes) and River Plate (97 players, average level of 0.81 and 2,305 minutes) complete the podium of the clubs with the best academies.

The top 10 includes a further Portuguese team (Sporting CP), another Spanish one (Real Madrid), two other Argentine clubs (Boca Juniors and Vélez Sarsfield), as well as Ajax from the Netherlands, Dinamo Zagreb from Croatia, and Defensor from Uruguay. Thirty countries are represented by at least one team in the top 100, the most represented nations being Argentina (15 clubs) and Brazil (11 clubs).

*Training clubs are defined as the first teams in which footballers have played for at least three years between the seasons of their 15th and 21st birthdays (inclusive).

>>> Top 100

This video illustrates the main changes that have taken place since 2010 in the composition of teams in thirty European top divisions in terms of squad size (increase), player height (also increasing), the proportion of club-trained footballers (decrease), that of expatriates (increase), the average age of first international migration (decrease), and the presence of newly recruited players (increase).

Best players of the last semester: eight areas

Thanks to the collaboration with Impect, the CIES Football Observatory has developed performance indices on a 100 basis in eight areas of play. This Weekly Post presents the 50 outfield footballers with the highest values in each domain for the last six-month domestic league games, with each player appearing only in the ranking for the area in which they scored highest.

The following players head the tables in the different areas : Virgil van Dijk (air defence), Moisés Caicedo (ground defence), Rúben Dias (defensive build-up), Pedri González (orchestration), Michael Olise (take on), Lamine Yamal (chance creation), Kylian Mbappé (finishing) and Erling Haaland (air attack).

The youngest players in the top 50 of each category are as follows : Eivind Helland (air defence), Agustín Medina (ground defence), Pau Cubarsí (defensive build-up), Warren Zaïre-Emery (orchestration), Estêvão Willian (take on), Lamine Yamal (chance creation), Franco Mastantuono (finishing) and Thierno Barry (air attack).

>>> Top 50s for the eight domains

>>> More about Impect

>>> More about the indices

Player asset evolution: Chelsea ahead of PSG

The 516th CIES Football Observatory Weekly Post highlights the clubs whose estimated transfer value of players owned has changed the most, positively or negatively, over the past year. We present both the change in absolute terms (‘gross’ evolution) and the change considering the financial balance of transfer operations (with sell-ons, not including add-ons) completed during the last two transfer windows (‘net’ evolution).

In terms of net evolution, Chelsea tops the list (+€364 million) with player valuations up €372m and a balanced net spending for the last two transfer windows : -€8m. The reigning world champions are ahead of the European ones, Paris St-Germain (+€303 million). German side Eintracht Francfort (+€294m) rounds up the podium. Manchester United (-€377 million) and Manchester City (-€315m) are at the opposite end of the table.

The Post also presents the estimated transfer value of all players owned by clubs (not including any sell-on related sums). In this case, the top three are Chelsea (€1.81 billion spread across 50 players), Real Madrid (€1.68 billion, 32 players) and Manchester City (€1.47 billion,46 players). Five other clubs have a total estimated value in excess of one billion : Arsenal, Paris St-Germain, Liverpool, Barcelona and Tottenham.

>>> Full data

>>> Top valued players per club in this tool

>>> More information on the CIES Football Observatory’s statistical model for estimating transfer values in this scientific article

Youngest teams: global rankings

The 515th CIES Football Observatory Weekly Post ranks teams from 69 leagues around the world according to the average age of line-ups fielded in the current domestic league season. Not including B-teams, the lowest value overall was recorded for Latvian side FK Metta (20.96 years), while the highest was measured for Saudi Arabia’s Khaleej FC (31.62 years).

In the five major European leagues, the following teams fielded, so far, the youngest line-ups : Chelsea (Premier League, 24.36 years), Barcelona (La Liga, 25.22 years, ahead of Real Madrid, 25.67 years), RC Strasbourg (Ligue 1, 21.45 years, 2nd lowest value overall, ahead of Paris St-Germain, 24.09 years), Eintracht Frankfurt (Bundesliga, 24.48 years) and Parma Calcio (Serie A, 24.26 years).

The Post also presents the percentage of minutes per age category (≤21, 22-25, 26-29, ≥30). Italian champions Napoli are the Champions League big-5 participant with the highest percentage of minutes by players aged 30 or over (46.8%, up to 84.5% for over 26-year-old players), ahead of Bayern Munich (36.0%, and 70.3% respectively). These proportions are much lower for Champions League title holders Paris St-Germain : 3.0% and 23.4%.

>>> Data for all teams

>>> More details about BlueCo’s policy in this video

>>> More exclusive demographic data in this Atlas

CIES “Ballon d’Or”: Lamine Yamal !

With the real Ballon d’Or to be awarded today by France Football, the CIES Football Observatory has had fun ranking the 100 best players in the world over the past year using a purely statistical method. The latter takes into account the performances of outfield footballers during the last year in six game areas (see here, data from Impect), as well their employment, matches’ sporting level and results (see here).

FC Barcelona prodigy Lamine Yamal ranks first ahead of Kylian Mbappé and his teammate Pedri González. The best centre back is Virgil van Dijk (4th), while Achraf Hakimi has the highest score among full/wing backs (9th overall). One of the favourites to win the real Ballon d’Or, Ousmane Dembélé, ranks seventh in this case, also behind Michael Olise and Mohamed Salah.

The three oldest players in the top 100 are Luka Modrić, Lionel Messi, and Nicolás Otamendi, while the youngest are Lamine Yamal, Pau Cubarsí and Désiré Doué. Virgil van Dijk tops the rankings in terms of experience, while the top three in terms of pure performance are Kylian Mbappé, Lamine Yamal and Lionel Messi.

>>> Top 100

Costliest squads: Chelsea at the top

Issue number 513 of the CIES Football Observatory’s Weekly Post presents the 100 clubs worldwide having committed the most money in transfer fees (including add-ons regardless of actual payment) to recruit their current first team squad players. Chelsea tops the list with a total investment of €1,314 million, of which €134 million for the most expensive signing (Moisés Caicedo, 10%).

Manchester City (€1,128 million) and Manchester United (€1,071m) round up the podium, followed by two other English clubs : Liverpool (€1,065m) and Arsenal (€1,001m). No club outside England has invested more than one billion to assemble its squad, with a maximum of €873 million for Champions League title holders Paris St-Germain (7th, just ahead of Real Madrid). Al-Hilal tops the rankings for non-European clubs (€451m, 19th).

Compared to the same date last year, the amounts committed by the ten clubs having invested the most in transfer fees to build their current first team squads increased by 15% (from 8.44 to 9.67 billion) and those of the top 100 by 12% (from 26.23 to 29.42 billion). This evolution is directly linked to the record transfer spending registered in 2025, as illustrated in this video.

>>> Top 100 of costliest squads

>>> Top valued players per club in 67 leagues as per CIES Football Observatory statistical model

>>> New Prospect Sheet with Impect: Alvaro Montoro

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