Manchester United's academy made the single biggest contribution to last season's Premier League of any youth set-up, a Press Association Sport study has found.
Their graduates racked up more than twice as many top-flight minutes played as the next best academy.
Players who finished their youth careers in the United academy were on the field for a total of 44,055 minutes in the study. Tottenham were second, with a total of 21,668.
The Red Devils' reputation for developing home-grown talent extends back to the "Busby Babes" of the 1950s and continued through the "Class of '92" group which played a part in the United side that dominated domestic football in the 1990s and won the treble in 1999.