Arrived: Stuttgart, 2005, £11 million
Departed: Barcelona, 2008, £11 million
Hleb was a relative nobody when he signed for the Gunners from the Bundesliga in 2005, but once again, it seemed as if Arsene Wenger had got it spot on. Playing out wide, Hleb impressed the Emirates faithful with his tricky performances and he made 89 appearances for the club, scoring seven goals. He didn’t pick up a trophy with Arsenal though and completed a switch to Barca in the summer of 2008. However, it turned out to be a disastrous move for both player and club as Hleb failed to shine, spending the majority of his three years at the club out on loan. He only made 19 league appearances in the red and blue and soon discovered the grass was much greener back in England.