Issue number 316 of the CIES Football Observatory Weekly Post compares clubs from 31 top divisions of UEFA member associations according to the average age at which they recruited their current players (not including footballers from the youth academy). CSKA Moscow made the earliest recruitment (21.1 years), ahead of FC DAC 1904 (21.7) and SC Heerenveen (22.1).

Issue number 315 of the Weekly Post highlights the big-5 league players whose transfer value has increased the most in November according to the CIES Football Observatory algorithm. The Norwegian prodigy Erling Haaland tops the table for footballers with a transfer valuation of more than €80M: €155M compared to €120M at the end of October (+€35M).

Issue number 314 of the CIES Football Observatory Weekly Post presents the ten most represented foreign origins in 126 professional leagues worldwide. The Brazilians represent the biggest contingent of expatriates in 23 championships, followed by the Argentineans (15) and the French (13). The Atlas of migration presents more exclusive data on international transfer networks.

Issue number 313 of the CIES Football Observatory Weekly Post presents the 100 players from the 10 best European leagues who won the highest percentage of aerial defensive duels since the start of the season. Chelsea’s centre-back Kurt Zouma tops the table with 26 aerial duels won out of 27 (96.3%). Berat Djimsiti (Atalanta) and Harry Maguire (Manchester United) complete the podium.

Issue number 312 of the Weekly Post presents the exclusive CIES Football Observatory annual rankings of the clubs having trained the most players active in 31 top divisions of UEFA member associations. With 85 footballers trained, the Serbian side FK Partizan tops the table ahead of AFC Ajax (77) and Dinamo Zagreb (71). With respect to big-5 league players, the podium consists of Real Madrid (43), Barcelona (32) and Lyon (31).

Alphonso Davies (Bayern Munich) heads the exclusive CIES Football Observatory list of the highest estimated transfer values for big-5 league players born in the 2000s: €180 M. The Champions League winner outranks Jadon Sancho (Borussia Dortmund, €125 M) and Ansu Fati (Barcelona, €123 M). The top 100 is available in issue number 311 of the Weekly Post.