Premier League threaten 20 clubs with punishments amid 'swap deals' controversy
![Premier League threaten 20 clubs with punishments amid 'swap deals' controversy](https://i2-prod.mirror.co.uk/incoming/article33125497.ece/ALTERNATES/s615/0_GettyImages-2060829513.jpg)
A number of Premier League clubs including Chelsea, Aston Villa and Everton have agreed deals for their academy stars over recent weeks, with the league now intervening with a warning