7. Diego Forlan
In seventh place on the Top 10 Footballers Who Flopped At Manchester United is the Uruguayan striker Diego Forlan. Diego Forlan is football icon to most players and has had a wonderful football career. He has had major success overall but during his time at Manchester United the striker failed to impress and thats why his name has been found on this list. The striker signed for Manchester United from Argentinian club Independiente in the year 2002 to put more thrust upfront with Ruud Van Nistlerooy . The striker left Manchester United and went to Spain where he made his name known and became one of the most lethal strikers in the league and Europe at large.