The footy data site used Prime Time Sport’s Football Value Index to place a price tag on the heads of promising youngsters.
Only players born on or after July 1, 1995 were considered.
And four whizz kids who ply their trade in the Premier League featured in the top 10.
So which up-and-coming top flight players made the cut?
Click through the gallery above to see the 10 most valuable under-21 players in world football.