Issue number 459 of the CIES Football Observatory Weekly Post presents the world's top 100 players who have not yet turned 23 and whose transfer value* has increased the most over the last six months. Barcelona's and Spain's 16-year-old prodigy Lamine Yamal tops the list with an increase of €134m (from €11m to €145m).

Benfica's Portuguese João Neves (+€72m) and Girona's new Brazilian full international Sávio Moreira (+€70m) complete the podium. Other promising youngsters in the top positions include England's and Chelsea’s Cole Palmer (fourth), Brazil’s and Palmeiras (on loan from Real Madrid) Endrick Felipe (sixth), as well as Belgium’s and Manchester City’s outstanding winger Jérémy Doku (seventh).

Players from 12 leagues and 55 clubs feature in the top 100 rankings, with a maximum of 29 footballers from the English Premier League, followed by the Spanish Liga (17), the German Bundesliga (14) and the French Ligue 1 (11). Brighton & Hove Albion is the most represented club in the top 100 (6 players), followed by Chelsea, Tottenham, Ajax and Eintracht Frankfurt (4 footballers).

*Estimated according to CIES Football Observatory statistical model.