9. Richard Wright 2001-02
When he arrived at the club Wright had been tipped to be the long term replacement for David Seaman and came with the reputation as one of the finest young goalkeeper’s in the country and £6m seemed like a bargain.
However, his 22 appearances in an Arsenal shirt were so erratic that Wenger decided early on that he couldn’t be trusted. Capable of batting away a swerving 25-yard drive in one instant, but then on the other was just as comfortable letting a near post tap in trickle past his glove. Amazingly, he’s now at Manchester City.