Transfers
| Date | From | To | Type |
|---|---|---|---|
| 07.08.2017 | Rangers | — | Free |
| 29.01.2016 | Aston Villa | Grasshoppers | Free |
| 01.07.2014 | Valencia | Aston Villa | Free |
| 31.01.2014 | Fulham | Valencia | — |
| 25.01.2010 | Arsenal | Everton | Loan |
| 01.08.2008 | Arsenal | AC Milan | Loan |
| 01.08.2003 | Servette FC | Arsenal | € 1.5M |