Issue number 531 of the CIES Football Observatory’s Weekly Post presents the 100 teams worldwide whose academy graduates still under contract (in the club or out on loan) total the highest aggregate transfer value.

The 530th CIES Football Observatory Weekly Post presents the outfield players not yet having turned 22 who most outperformed their teammates during the current or last completed season in 65 leagues around the world.

The 529th Weekly Post from the CIES Football Observatory presents the clubs having trained the highest number of footballers who played in the big-5 during the current season. With no fewer than 40 players in the five major European leagues graduated from La Masia, Barcelona tops the rankings. Real Madrid (35 players) and Paris St-Germain (31 players) round up the podium.

Valued at €343 million, Lamine Yamal continues to be the most expensive player in the world according to the CIES Football Observatory’s statistical model. The young Spaniard is ahead of two centre forwards who, although older, keep scoring and performing well : Erling Haaland (€255m) and Kylian Mbappé (€201m).

The last Weekly Post of 2025, the 527th in a series that began in 2012, presents the 100 players worldwide born in 2006 or later who are not yet playing for a big-5 league club having performed best this year.

The 526th CIES Football Observatory Weekly Post presents the most physically robust outfield players in terms of minutes played in official matches (club and national team) over the past year. Paraguayan international Júnior Alonso (Atlético Mineiro) tops the list, ahead of Belgium’s Hans Vanaken (Club Brugge) and Argentina’s Nicolás Otamendi (SL Benfica).

The 525th CIES Football Observatory Weekly Post presents the players worldwide whose transfer value* is likely to increase the most in absolute terms over the next six months without contract extension and according to a scenario predicting the same performance as in the last six months, both individually (minutes played, starting 11 rate, goal frequency, etc.) and collectively (results).

Thanks to 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 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 and already permanently transferred to other teams.

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 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 position.

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).