Issue number 394 of the CIES Football Observatory Weekly Post presents the rankings of teams having trained the most footballers active in 31 top divisions leagues of UEFA member associations, as well as the five major ones respectively. Training clubs are those where footballers have played for at least three years between the seasons of their 15th and 21st birthday. The 31 leagues covered correspond to those available in the Demographic Atlas.

AFC Ajax tops the table at the level of the 31 top divisions (85 players trained) ahead of SL Benfica (73) and Dinamo Kiev (72), while Real Madrid ranks first for footballers in the the big-5 (43) ahead of Barcelona (38) and the French duo Paris St-Germain and Olympique Lyonnais (34). Sporting CP heads the rankings for non-big-5 league clubs having trained the most footballers currently playing in the five major championships (24), with River Plate at the top for teams outside of Europe (14).

The Post also presents a Training Index, calculated by weighting the number of players trained per club by their experience capital. The latter metrics combines official game minutes played and the experience level of all footballers involved in these matches. AFC Ajax and Real Madrid also top the Training Index rankings for players active in 31 European top divisions and the big-5 respectively, with Sporting CP at third position in both tables.

Players included had to be present on the 1st of October of the year of reference in the first team squad of the clubs analysed. Moreover, they had to have already played in domestic league games during the current season or, this being not the case, to have played matches in adult championships during each of the two previous ones (B-teams not included). The second and eventual third goalkeepers were considered in all cases. The lists of players trained for up to three clubs are available for free on demand.

Football clubs pursue different politics in terms of age at which players are signed. Issue number 393 of the CIES Football Observatory Weekly Post analyses from this perspective 3,778 transfers carried out during the last ten seasons by the 50 clubs always present in the five major European leagues over this period. Average recruitment ages stretch from just 22.87 years of age for Real Madrid up to a maximum of 26.71 years of age for Chelsea.

No English or Italian teams are in the top ten of clubs having on average signed the youngest players. Conversely, in the list are five German clubs (Borussia Mönchengladbach, Borussia Dortmund, Wolfsburg, Bayer Leverkusen and Bayern Munich), three French teams (Nice, LOSC Lille and Monaco), as well as two Spanish ones (Real Madrid and Real Sociedad). Real Madrid is the only team among the 50 surveyed that did not sign players aged 30 or over during the decade analysed.

At the opposite end of the table, among the ten teams having on average recruited the most experienced players are five English clubs (Chelsea, West Ham, Manchester United, Everton and Crystal Palace), four Italian sides (Inter, Milan, Fiorentina and Lazio), as well as a Spanish one (Atlético Madrid). Detailed information on the methodology used and further analyses of recruitment policies followed by big-5 league teams from an age perspective are available in the brand-new October’s CIES Football Observatory Monthly Report.

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Issue number 392 of the CIES Football Observatory Weekly Post crunched InStat data to rank 74 leagues worldwide according to the number of chances per game recorded during the current calendar year. The German Bundesliga leads the table with 12.96 chances per match, while the Brazilian Serie B is at the opposite end with on average one third less clear-cut opportunities to score per game (8.41).

The German Bundesliga is the best ranked league of the big-5 also with regard to goals per match: 3.04. However, in this case, five competitions recorded higher values, with a maximum of 3.38 for the Swiss second division. The greatest figure outside of Europe was recorded in Australia (3.04). Conversely, nine non-European leagues are among the eleven that recorded the lowest figures, with the Ukrainian and Bulgarian top divisions as only exceptions.

Rankings are quite different by considering the average number of penalty goals per game. The Russian top division (0.41) heads the table. The top two Japanese leagues and the English second to fourth levels of competition are at the opposite end, with the English Premier League recording the lowest figure among the five major European championships. Whether it is for chances, goals or penalty goals, the study shows the continued existence of different approaches to the game by coaches, players and referees across the world.

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The 391st edition of the CIES Football Observatory Weekly Post analyses InStat data on passes for 1,226 teams from 71 competitions worldwide. Manchester City leads the table with 754 passes attempted per domestic league game. Only two of the 1’226 clubs surveyed also made more than 700 passes per match: the Japanese second division side Albirex Niigata (713) and Portuguese giants SL Benfica (708).

The number of passes attempted greatly vary between clubs. In the English Premier League, for example, Manchester City makes on average 2,1x more passes per game than the club attempting the least, Bournemouth: 754 vs 352. The lowest figure overall was recorded for the Saudi side Al-Batin FC (199 per game), while the minimum at big-5 league level was measured for Spanish Liga’s Getafe CF (329).

The Post also presents the data on the percentage of successful passes, as well as their distribution between forward (angle span 90°), backward (idem) and lateral. The greatest figure for successful passes was recorded for Paris St-Germain (91.4%), ahead of Manchester City (90.8%) and Real Madrid (90.0%). Istanbul Basaksehir leads the table for backward passes (20.2% of the total), Bodo/Glimt for lateral passes (61.3%) and the Argentineans of Deportivo Riestra for forward ones (64.6%).

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Issue number 390 of the CIES Football Observatory Weekly Post ranks clubs from 60 leagues worldwide (not including B-teams) according to the average age of line-ups fielded during the current or last completed season. Valencia is the youngest team within the five major European championships (on average 23.99 years, 25% of minutes by U21 players), while the record-low figure was observed for the Danish side FC Nordsjælland (22.31 years, 74% of minutes by U21 footballers).

The youngest teams in the other leagues of the big-5 are Stuttgart (24.22) in Germany, Southampton (24.40) in England, Lecce (24.56) in Italy and Stade de Reims (24.83) in France. Spanish giants Barcelona fielded players aged 21 or less for the highest percentage of domestic league minutes (29.5%). Conversely, Atlético Madrid and Tottenham are among the five big-5 league teams that did not yet field U21 footballers.

The extreme figures for line-ups’ age in South America were recorded for the Venezuelans of Zulia FC (23.74 years) and, at the opposite end, the Paraguayans of 12 de Octubre (31.97 years). At league level, the figures stretch from a minimum of 25.23 years of age in the Dutch Eredivisie to a maximum of 29.31 for the Thai top division. At big-5 league level, the values vary from 26.60 years of age in the French Ligue 1 to 27.54 in the Spanish Liga.

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Issue number 389 of the Weekly Post assesses paying fee transfer operations carried out by current big-5 league clubs since July 2012. The study compares players’ values prior to transfer, estimated according to the exclusive CIES Football Observatory’s statistical model, and fees actually paid. This allows us to highlight clubs having most driven inflation up, with Manchester United heading the rankings.

Manchester United’s total investment for the 33 fee paying transfers assessed in the study was €238M greater than the estimated value of players concerned: €1.59 vs €1.36 billion (+18%). Juventus (€233 M, +29%) and Paris St-Germain (€162M, +19%) complete the overspending table’s podium. Only three Premier League teams figure among the 36 clubs that invested less money than expected to conclude the fee-paying deals assessed. This confirms their key role in driving up inflation on the transfer market.

Deals concluded by triggering buy-out or option-to-buy clauses were not included in the sample analysed. Only 86 current big-5 league clubs for which we were able to assess at least ten fee-paying transfers figure in the rankings. More information about the CIES Football Observatory’s scientific method to assess players’ transfer values and fees is available in this open access peer review paper.

Issue number 388 of the Weekly Post presents the top 10 Impact Score rates among footballers who did not yet celebrate their 25th birthday for each of the fifteen technical profiles identified by the CIES Football Observatory’s role-based approach. The greatest values overall (100/100) were recorded for Alessandro Bastoni (blocker playmaker), Éder Militão (pure blocker), Jules Koundé (air blocker filter man) and Vinícius Júnior (infiltrator creator).

The Impact Score is an exclusive CIES Football Observatory’s metrics developed to assess players’ sporting achievement and potential. It is calculated by taking into consideration the average match level in which players participated according to the experience capital method, official game minutes played over the last 365 days, as well as pitch performance compared to both teammates, opponents and same profile’s players.

The role-based approach used to determine technical profiles clusters players according to the level of their involvement in eight areas of the game with respect to teammates: air defence, ground defence, recovery, distribution, take on, chance creation, air attack and shooting.

An exclusive tool, powered by InStat data, displaying big-5 league players’ technical profile, performance level, age, contractual status, estimated transfer value and suitable potential replacements among footballers from 59 leagues worldwide is accessible for free here. A premium version is available for professionals. Do not hesitate to contact us for more information and insights.

Issue number 387 of the CIES Football Observatory Weekly Post ranks big-5 league teams according to transfer fees invested to sign their current squad members. Manchester City heads the rankings closely followed by local rivals Manchester United. Chelsea completes an all-English podium, while Paris St-Germain tops the table for non-Premier League teams.

The Manchester teams are the only clubs worldwide with a transfer fee spending to assemble the squad greater than one billion euro (including add-ons irrespective of their effective payment). Real Madrid (€721M) has the costliest squad in the Spanish Liga, Bayern Munich (€499M) in the German Bundesliga and Juventus (€473M) in the Italian Serie A. The data for 2020/21 is available here.

The freshly released CIES Football Observatory September’s Monthly Report presents further financial analysis of big-5 league transfers. It notably shows that Manchester United tops the table for the most negative net transfer spending over the last decade (-€1.27 billion), ahead of Manchester City (€902M) and Paris St-Germain (€868M).

During the last transfer window, Premier League teams invested an all-time high of €2.6 billion (including add-ons) to sign new players. Overall, the big-5 league clubs’ expenditure reached €5.2 billion for the summer and €6.2 bn for the whole 2022 calendar year. This is the second highest figure ever observed, an increase of 61% compared to 2021 and just 7% below the record high of 2019. More exclusive transfer fee data is available for free in the freshly published 77th edition of the CIES Football Observatory Monthly Report.

An all-time high was also recorded with regard to the share of transfer fees paid by English Premier League teams out of total big-5 league clubs’ investments. From an average of 38.7% during the ten-year period studied, this percentage reached a peak of 48.5% in 2022. In ten years, the English Premier League cumulated a transfer deficit of -€9.5 billion, followed by the Italian Serie A with “just” -€1.4 bn. The French Ligue 1 is at the opposite end (+€350M).

Three French clubs, LOSC Lille (+€379M), Olympique Lyonnais (+€282M) and Monaco (+€215M), are at the top of the rankings for current big-5 league teams with the most positive net transfer spending over the past decade. Manchester United is at the opposite end (-€1.27 billion), followed by Manchester City (-€902M) and Paris St-Germain (-€868M). Manchester City (€279M) heads the table for transfer fees received from big-5 league clubs in 2022, ahead of AFC Ajax (€226M).

All CIES Football Observatory’s reports available for free here!

Issue number 386 of the Weekly Post crunched InStat technical performance data within the framework of the freshly conceived CIES Football Observatory’s Impact Score (IS) method to unveil 250 hot prospects born in 2000 or after in 59 leagues worldwide. Vinícius Júnior (2000, IS of 100), Bukayo Saka (2001, IS 92), Joško Gvardiol (2002, IS 94), Jude Bellingham (2003, IS 91) and Pablo Gavi (2004 or younger, IS 93) top the rankings per year of birth.

Sandro Tonali and Vitinha Ferreira complete the podium for players born in 2000, such as Jurriën Timber and Gonçalo Inácio for 2001-born footballers. The second and third-ranked players for the other years of birth are Piero Hincapié and Eduardo Camavinga (2002), Jamal Musiala and Harvey Elliott (2003), as well as Gabriel Slonina and Daniil Khudyakov (2004 or younger). The Impact Score values for footballers from the 59 leagues selected are available for free in this exclusive tool.

The Impact Score is calculated from the average match level in which players participated according to the experience capital method, their amount of official game minutes played over the last 365 days and their pitch performance compared to both teammates and opponents, as well as with respect to players with the same technical profile as per the role-based approach also freshly developed by the CIES Football Observatory research team.

The CIES Football Observatory launches its 2022/23 season with the final tables’ forecasting for 23 top divisions of UEFA member associations. The predictions were carried out from a statistical model including teams’ performances over the two previous seasons, current players’ experience capital and clubs’ transfer market expenditure. The full tables are available for free in the 385th Weekly Post.

Inter would be the only new champion in the five major European leagues, where hierarchies are well established. Sporting CP would be crowned in Portugal instead of Porto, while Fenerbahçe would overtake Trabzonspor in Turkey. Slavia Praha in the Czech Republic, Midtjylland in Denmark, Rangers in Scotland, as well as Young Boys in Switzerland are also supposed to beat previous champions.

With respect to relegation fight in the five major European leagues, the following teams already present in the top division are in great danger: Southampton in the Premier League; Mallorca and Cádiz in the Liga; Clermont Foot, Troyes and Angers in the Ligue 1; Hertha BSC and Bochum in the Bundesliga; as well as Salernitana in the Serie A. An update will be available on demand after the end of the transfer window.

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