8) Andy Cole, £7.5m to Blackburn Rovers, 2001
A great poacher in his time, forming a brilliant partnership with Dwight Yorke up front. However, with Ruud van Nistlerooy arriving at United, there was no room for the striker and he was duly moved on.
7) Gabriel Heinze, £8.1m to Real Madrid, 2007
One of several moves to the Bernabeu in this top ten, and the Argentina international was sold after struggling to find a place in the team.