The 93rd CIES Football Observatory Monthly Report analyses the high-pressure data produced exclusively by the French company SkillCorner. It notably reveals the link between the frequency with which players are subjected to high intensity pressure from opponents, the position they occupy on the pitch and the style of play of their team.

During the 2023 and 2023/24 seasons, outfield players from teams in the 28 leagues studied experienced an average of 9.2 instances of high-intensity pressure per match. The highest values were measured for dominant teams: Manchester City (15.2 pressures per game), Bayer Leverkusen (13.9) and Columbus Crew (13.5). Manchester City also tops the table for the percentage of ball retention under high pressure (84.2%), followed by Real Madrid (81.2%) and Paris St-Germain (80.8%).

The study also highlights the players who stand out most positively in terms of ball retention under high pressure, based on the residuals of a statistical model that takes into account their position and their team’s style of play. This approach is particularly useful for scouting purposes to target recruits with an unexploited potential.

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The 455th CIES Football Observatory Weekly Post ranks teams from 54 leagues around the world according to their shooting efficiency. The latter was measured from the residuals of a statistical model explaining 78% of the differences in goals scored per team (not including penalties) on the basis of three variables produced by Wyscout: the number of expected goals according to the dangerousness of the chances created (also not including penalties), the number of shots on target and in total.

With 0.69 more non-penalty goals than expected per game, Greece’s PAOK FC have the most positive gap in absolute terms, reflecting judicious shooting decisions, as well as particularly effective finishing. Portugal’s Sporting CP (+0.59) and Italy’s AS Roma (+0.52) complete the podium. The Italians outrank Inter and Arsenal in the five major European leagues, followed by Bayern Munich, Bayer Leverkusen and Valencia.

In terms of the most negative gaps, with 0.63 fewer goals than expected per game, Melbourne City top the list, ahead of four particularly inefficient big-5 league teams: OGC Nice (-0.56), Olympique Lyonnais (-0.49), Rayo Vallecano (-0.48) and Montpellier (-0.47). Everton and Köln are the least effective clubs in the other leagues of the European big-5, Go Ahead Eagles in the Dutch Eredivisie, Vizela and Benfica in the Portuguese Primeira Liga, as well as RSC Charleroi in the Belgian Pro League.

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The 454th CIES Football Observatory Weekly Post presents the 20 outfield players for six positions playing in 28 leagues around the world whose number of accelerations* per match (SkillCorner data) deviates most positively from the value expected with respect to their position and their team’s style of play (level of possession, pressure and verticality), according to a statistical model explaining more than half of the differences observed between players.

With 1.93 more accelerations per game than expected, Victor Osimhen (Napoli) ranks first among centre forwards. The Nigerian is ahead of Ghanaian Emmanuel Boateng (Rio Ave) and Ivorian Vakoun Bayo (Watford). Among the wingers, the podium is made up of Álvaro García (Rayo Vallecano), Armand Laurienté (Sassuolo) and Felipe Anderson (Lazio). Dutchman Guus Til (PSV Eindhoven) tops the list for attacking midfielders.

As for the other positions, Sessi D’Almeida (Pau) is ahead of Josh Laurent (Stoke City) and 19-year-old Ezechiel Banzuzi (OH Leuven) among central or defensive midfielders; Jeremie Frimpong (Bayer Leverkusen) crushes the competition for wing or full backs with the greatest positive gap overall (x2.1 compared to the expected value) ahead of Marlon Fossey (Standard Liège); Danilo (Juventus), Ruan (Sassuolo) and Davinson (Galatasaray) make up the top three among centre backs.

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* Accelerations refer to runs of at least 0.7 seconds at >10.8 km/h/s. Only footballers who played at least 1,000 domestic league minutes in the current or last completed season, of which more than three quarters in the same position, are included in the rankings.

Issue number 453 of the CIES Football Observatory Weekly Post analyses the StatsPerform and Wyscout data on the number of cards, fouls and injury time measured over the last year for 71 leagues around the world. The study shows major differences between leagues in terms of all the indicators taken into account, reflecting different ways of interpreting the game by both players and referees.

In terms of red cards, the values range from 0.61 per match in Bolivia to 0.10 in the Japanese J2. For yellow cards, the extremes were measured in Uruguay (6.07) and, again, in the Japanese J2 (2.73). As for fouls, the maximum was recorded in the Brazilian Serie B (30.3 per match), while the minimum was observed in Norway and the Netherlands (20.0 in both cases). In terms of extra time, the data ranges from almost 14’ in Qatar and Saudi Arabia to 6’ in Finland and Slovakia.

If we relate the number of fouls to yellow cards (second yellow included), the values stretch from about one card every four fouls in Chile to one every eight in Japan. Among the European big-5 leagues, this ratio is much higher in the French Ligue 1 (6.8) than anywhere else (around 5), which may reflect either a lower propensity to hand out cards or a greater tendency on the part of referees to whistle for ‘small’ fouls.

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The 92nd CIES Football Observatory Monthly Report analyses from a spatial perspective the origin of the >€75 billion transfer revenues collected by clubs worldwide between 2014 and 2023. Overall, clubs have generated around two-thirds of their transfer incomes from international deals. However, this proportion varies greatly from country to country, with a minimum of 37% for English clubs and a maximum of 73% for French teams among the big-5 league associations.

Teams from only three countries other than England - among the twenty whose clubs generated the most transfer incomes during the last decade - collected less money from foreign teams than from domestic ones: China (22%), Mexico (44%) and Italy (48%). The dependence on foreign transfers is much greater for clubs in associations such as Portugal (91%), the Netherlands (90%), Belgium (87%), Brazil (86%), Argentina (83%) or Turkey (77%).

For many countries, England is the main fund provider for international transfers. Among the nine other associations whose clubs received the most indemnities between 2014 and 2023, this is notably the case for the Netherlands (38% of total transfer revenues were generated from England), France (32%), Germany (31%), Spain (30%), Portugal (30%), Belgium (25%) and Italy (14%). Brazil (Spain) and Argentina (Italy) are the only exceptions.

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Number 452 of the CIES Football Observatory Weekly Post presents the 169 clubs in the world whose volume of incoming or outgoing player transactions over the last five seasons exceeded the €100 million threshold, as well as their net spending for the last ten, the last five and the last season. In terms of the volume of money exchanged, Chelsea is clearly in the lead with €2.572 billion, followed by Manchester City (€1.726) and Paris St-Germain (€1.404).

In total, 14 teams from seven countries have ’shuffled’ over a billion euros in five seasons: five from England, two from Spain, two from Germany, two from Italy, one from France, one from Portugal and one from the Netherlands. Twenty-four countries, including five outside Europe, are represented among the 169 teams whose volume of transactions exceeded €100 million, with a maximum of 30 clubs for England.

In terms of balance sheets, the values for the current season range from -€384m for Al-Hilal to +€167m for Southampton. Over the last five seasons, the figures stretch from -€782m for Chelsea to +€354m for Benfica. Finally, over the last decade, the values go from -€1.348bn for Manchester United (with only Chelsea also totalling a >€1bn deficit) to +€732m for Benfica. All the sums presented include any add-ons, regardless of their effective payment.

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On this Valentine’s Day, the CIES Football Observatory Weekly Post highlights the footballers from 60 leagues around the world who have been in the first team squad of their current club for the longest uninterrupted period. Russian international goalkeeper Igor Akinfeev is the most loyal player overall: he has been defending the CSKA Moscow goal for 21 years.

In the European big-5 leagues, two Germans top the table: Thomas Müller (Bayern Munich) and Tony Jantschke (Borussia Mönchengladbach). They are currently playing their sixteenth consecutive season with their respective clubs. Three Spaniards complete the podium in the big-5: Athletic Club’s Iker Muniain and Óscar de Marcos, as well as Atlético de Madrid’s Koke Resurrección.

For the other European leagues surveyed, Akinfeev is ahead of compatriot Rizvan Utsiev (Akhmat Grozny), Scotland’s Lewis Stevenson (Hivernian) and Norway’s Steffen Hagen (Odds BK). Outside Europe, Emirati goalkeeper Ali Khaseif (Al-Jazira) tops the list ahead of the Shanghai Port duo Huikang Cai and Wenjun Lü, and Japan’s Hisashi Jogo (Avispa Fukuoka).

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The 450th issue of the CIES Football Observatory Weekly Post analyses the game intelligence data produced exclusively by our partners SkillCorner to reveal the one hundred midfielders with the best statistics in terms of ball retention under high pressure* in 28 leagues around the world. The best percentage in absolute terms was recorded for a player who is relatively unknown in Europe: Darlington Nagbe (93.4%) of Columbus Crew.

Four better-known midfielders rank behind Nagbe: Rodri Hernández of Manchester City (92.1%), Frenkie de Jong of Barcelona (91.8%), Toni Kroos of Real Madrid (also 91.8%), and Granit Xhaka of Bayer Leverkusen (91.6%). Many footballers from teams playing a possession-based game are among the top-ranked ones, showing that the individual ability to keep possession also depends on the solutions offered by teammates.

The three youngest players in the top 100 are Paris St-Germain’s Warren Zaïre-Emery, Barcelona’s Pablo Gavi and Hull City’s Tyler Morton (on loan from Liverpool), followed by Gerard Yepes (Sampdoria) and Pablo Maia (São Paulo). The data refers to the current season or the last completed one for summer leagues. Only footballers who have played at least 1,000 domestic league minutes have been incldued in the rankings.

* A player is considered under pressure when he is in possession of the ball and at least one opponent player nearby him is trying to either recover the ball or limit his options. For each situation, SkillCorner determines the intensity of pressure by considering the speed of the players applying it, their distance to the player in possession and the angle of their movement. More information is available here.

>>> Top 100

The 449th CIES Football Observatory Weekly Post presents the 402 footballers who played in the big-5 before turning 18 during the 15-year period from January 2009 to December 2023. Italian goalkeeper Gianluigi Donnarumma is the footballer who has played the most minutes in the five major European leagues as a minor (4,879), followed by Alban Lafont, Eduardo Camavinga, Florian Wirtz, Pablo Gavi and Warren Zaïre-Emery (ongoing).

Seven players made their big-5 league debut before the age of 16, the youngest in absolute terms being Arsenal’s Ethan Nwaneri (15.5 years). With 119 minors fielded by their clubs, France’s Ligue 1 is the leader in this area, as the Monthly Report number 91 also reveals. The sharp rise in the use of underage players recorded since 2022 is strongly linked to the increase observed at French Ligue 1 level.

The study also shows that early experience in big-5 leagues is no guarantee of success. Only a minority (47.7%) of footballers used in the big-5 as minors and who subsequently played in other teams were able to do so for at least one club at a better sporting level than their initial one. This finding indicates that caution is required when it comes to assessing the true potential of players launched into professional football at an early stage.

>>> The 402 minors’ list

>>> Full analysis

See also the FIFA, ECA & CIES study on the transfer of minors and their career paths.

The 448th CIES Football Observatory Weekly Post presents the 50 clubs in the world with the most positive and negative transfer balances for non-academy players signed and transferred between 2014 and 2023. The figures range from a positive balance* of €386 million for LOSC Lille (Pépé, Osimhen, Botman, etc.) to a negative balance of €631 million for Barcelona (Coutinho, Dembélé, Griezmann, etc.).

With +€317 million in capital gains, Ajax (de Jong, Antony, Lisandro Martínez, etc.) are in second place. RB Salzburg (Naby Keita, Mwepu, Haaland, etc.) complete the podium, just ahead of AS Monaco (Tchouaméni, Lemar, Bernardo Silva, etc.). The top 10 of clubs having generated the most profits from player trading during the last decade also includes two German (RB Leipzig and Eintracht Frankfurt), two Italian (Sassuolo and Atalanta) and two Portuguese teams (Benfica and Sporting CP).

At the other end of the scale, Barcelona (-€632 million) are ahead of Chelsea (-€482m with the three biggest losses for Jorginho, Pulišić and Rüdiger) and Arsenal (-€436m; Pépé, Aubameyang, Lacazette). Paris St-Germain has the fourth most negative balance (Neymar, Di María, Icardi, etc.), ahead of Manchester United (Matić, Fred, Mata, etc.). Manchester City (-€59m) and Bayern Munich (-€61m) have the best balances among the most competitive teams.

* Add-ons included irrespective of actual receipt or payment, not including agent commissions.

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The top 100 of youth academy players’ last decade transfer incomes by club is available here.

The 447th CIES Football Observatory Weekly Post presents the 100 centre backs in the world with the best aerial play statistics* according to an index computed from the number of aerial duels won, in relation to the playing time and the frequency of aerial duels at employer team level, the percentage of aerial duels won and the sporting level of the matches played. Liverpool’s Dutchman Virgil van Dijk is ahead of Bayern Munich’s South Korean Min-jae Kim.

Now reconverted from defensive midfielder to centre back, Paris St-Germain’s Portuguese Danilo Pereira rounds off the podium, ahead of two other players active in the five major European leagues: England’s Jamaal Lascelles (Newcastle United) and France’s Dan-Axel Zagadou (Stuttgart). Argentina’s Bruno Duarte (Panatelikos) is the highest-ranked player from outside the big-5, while Joaquim Henrique (Santos) tops the table for outside Europe’s centre backs.

Cerro Porteño’s Paraguayan Lucas Quintana is the youngest player in the top 100 (19.0 years of age, 95th), ahead of Westerlo’s, on loan from Galatasaray, Turkish Emin Bayram (20.8 years, 21st) and Chornomorets’ Ukrainian Volodymyr Salyuk (21.6 years, 42nd). By contrast, the three oldest centre backs in the top 100 are Sevilla’s Sergio Ramos (37.8 years, seventh), Racing Santander’s Germán Sánchez (37.1 years, 63rd) and Deportivo Saprissa’s Kendall Waston (36.0 years, 64th).

* Wyscout statistics refer to domestic league matches in the current season or the last completed one for summer leagues. Only footballers who have played at least 900’ are included in the rankings.

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The 446th CIES Football Observatory Weekly Post presents the 100 clubs with the most profitable academies in the world in terms of revenues generated over the last ten years by the transfer of players who spent at least three seasons there between the ages of 15 and 21*. Portuguese side SL Benfica are clearly in the lead with €516 million, two thirds of which has been collected in the last five years.

AFC Ajax (€376 million) and Olympique Lyonnais (€370 million) complete the podium. As in the case of Benfica, the majority of Ajax’s revenues from the transfer of players from its academy has been generated over the last five years (66%). Despite transfer price inflation, this percentage is much lower for Olympique Lyonnais (50%).

Also in the top ten are three English clubs (Chelsea, Tottenham and Manchester City), a second Portuguese team (Sporting CP), as well as Real Madrid (fourth), AS Monaco (sixth, largely thanks to the revenues from Kylian Mbappé’s transfer to Paris St-Germain) and Italy’s Atalanta (tenth). Outside Europe, the clubs with the most profitable academies are Brazil’s Flamengo (thirteenth) and Argentina’s River Plate (fourteenth).

* Including add-ons regardless of their actual receipt.

>>> Find out the top 100