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.

Football clubs pursue different politics in terms of age at which players are signed. Issue number 392 of the CIES Football Observatory Weekly Post analyses 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.

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 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 (711) and Portuguese giants SL Benfica (708).

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).

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.