#2 Paul Pogba
We all know this was coming, who can forget that Manchester United, under the legendary Sir Alex Ferguson, had let one of the rising superstars of the game slip through their hands for next to nothing in 2012, only to buy him back for the-then world-record fee in 2016.
Juventus made the most of the wage dispute that pushed Pogba away from Old Trafford and the 19-year old Pogba burst onto the scene with the reigning Italian Champions in the 2012-13 season, making 27 appearances for the club and scoring 5 goals in a campaign that saw him win the Serie A with the club.
Well, signing players for free is a great thing on its own, but when they sold the Frenchman back to his old club in 2016 for €105 million, they proved they are the true kings of the transfer market.