Paul Pogba's turbulent time in a Manchester United shirt perfectly epitomises the club's struggles to get the best out of some players.
The Red Devils' inability to stop Pogba going to Juventus in 2012 cost them dearly when they eventually brought him back to Old Trafford and it's a transfer misstep the club is familiar with.
Gerard Pique, who will return to Old Trafford on Wednesday night in the Champions League with Barcelona, is another player whose career really took off after swapping the Red Devils for the Blaugrana in 2008.
From Pogba to Pique, here are the players that have thrived after saying goodbye to Man Utd...