8. Kleberson
Joined: August 2003; Fee: ÂŁ6.5m; Appearances: 30; Goals: 2
Remember Kleberson? Of course you don’t! The player that United unveiled the same day as Cristiano Ronaldo – see, you do remember!
The World Cup winning Brazilian was actually brought in to replace the before mentioned Veron, but turned out to be just as bad a signing for the Red Devils. He spent a forgettable two years at United, and even dislocated his shoulder in just his second start – pretty much summing up his entire time in England.