Real Madrid produce most academy players in top 5 leagues over past 20 years, Barcelona are 2nd, PSG are 3rd, and Manchester United are 5th
According to calculations by the CIES Football Observatory, a total of 166 players who spent at least three years in Real Madrid’s academy between the ages of 15 and 21 have played in the top divisions of England, Spain, Italy, Germany, and France.
Barcelona rank second with 156 players, followed by PSG (111), Lyon (103), Manchester United (103), Rennes (94), Atalanta (94), and Athletic Club (89).