Top 5: Ligue 1 has most "home-grown" players at 19.28% average per squad, Premier League at 10.16%
In Ligue 1, the proportion of players to have played in that club for at least three seasons between the ages of 15 and 21 was 19.28% for the 2014-15 season, the highest total amongst the European Top 5 leagues, according to a study by the CIES, and published on 16/06/2015. Under this CIES definition of "home-grown" players, the French league...
