The 411th CIES Football Observatory Weekly Post ranks the teams currently playing in 75 leagues around the world according to the number of different players fielded in domestic league matches over the last five years. The top three most stable teams are Sweden’s Halmstads BK (44 footballers), Manchester City (47) and Athletic Club (49).

The 410th CIES Football Observatory Weekly Post ranks the teams in 52 leagues around the world according to the current season’s ratio between fouls committed and suffered. In the five major European championships, according to the InStat/Wyscout data, the values range from a ratio of 1.49 for Manchester United to 0.68 for Real Madrid.

Issue number 409 of the CIES Football Observatory Weekly Post ranks teams worldwide according to the total estimated transfer value of their youth academy graduates (at least three years between the ages of 15 and 21) active in more than 50 professional leagues. SL Benfica tops the table with a total academy graduates’ value of €670 million spread between 104 players, of which €151m for 20 footballers whose transfer rights are still owned by the Portuguese team.

The 408th CIES Football Observatory Weekly Post presents the net spending (including add-ons) for transfers concluded over the last five seasons by the 100 clubs with the highest volume of trade. Chelsea has the most negative balance with a deficit of €749m, of which a record €620m during the current season, ahead of Manchester United (-€670m) and Arsenal (-€544m). Ninth-placed Juventus has the biggest deficit among non-English clubs (-€337m).

Issue 407 of the CIES Football Observatory Weekly Post presents the players who have performed best in the area of take on over the past year on the basis of an exclusive index based on 100 taking into account the frequency of successful dribbles and crosses, playing time, as well as the sporting level of matches played. Ousmane Dembélé (Barcelona) tops the list among attacking players and João Cancelo (Manchester City) among defending ones.

Issue 406 of the CIES Football Observatory’s Weekly Post presents the 50 clubs that spent the most on the player market during the current and last summer’s transfer windows. Chelsea crushes the competition with €555 million invested (including add-ons) to acquire 15 footballers. This is more than double the amount spent by the second biggest spender: Manchester United (€272 million for 7 players).

The 405th edition of the CIES Football Observatory Weekly Post ranks 417 teams from 27 European top divisions according to the percentage of minutes played by club-trained footballers, i.e. present for at least three years between the seasons of their 15th and 21st birthdays. The highest proportions were measured for the Slovakians of MŠK Žilina in total (73.3% of minutes by 16 players trained) and Athletic Club in the big-5 (56.6%; 13).

Issue number 404 of the CIES Football Observatory Weekly Post presents sixty players whose contracts end next June with the highest Impact Score in their age group. The French Evan N’Dicka (Eintracht Frankfurt) tops the list among footballers who have not yet turned 23, the Spaniard Marco Asensio (Real Madrid) for those aged between 24 and 26, as well as Adrien Rabiot (Juventus) for players between 27 and 30 years of age.

Jude Bellingham heads the list of the 100 players worldwide with the top estimated transfer value according to the statistical model exclusively developed by the CIES Football Observatory research team. His owner club, Borussia Dortmund, could potentially earn up to €208m by transferring the 19-year-old English prodigy. With Bellingham’s contract running out in June 2025, this is probably the transfer window during which the Germans could make the biggest profit.

Issue number 402 of the CIES Football Observatory Weekly Post pays tribute to the Argentine players who took part in the 2022 World Cup qualifiers or final tournament. Rodrigo de Paul played the most games in total: 23, including all seven in Qatar. Nicolás Otamendi, on the other hand, leads the way in terms of minutes played (2,023).

Issue 401 of the CIES Football Observatory Weekly Post presents the clubs having trained the most players selected for the 2022 FIFA World Cup. Training clubs are those where players have stayed for at least three years between the seasons of their 15th and 21st birthdays. At the top of the list are the Dutch side of AFC Ajax with eleven players trained having represented five different national teams.

The CIES Football Observatory research group is happy to disclose the 400th edition of its Weekly Post, presenting the 50 leagues where 2022 FIFA World Cup footballers have played the most senior matches up until their 23rd birthday. The German Bundesliga leads the table with more than 5,000 games played in the competition by 99 footballers present at the World Cup, representing 25 different national teams.