Transfers
| Date | From | To | Type |
|---|---|---|---|
| 16.02.2016 | West Ham | — | € 11.6M |
| 01.09.2015 | — | West Ham | — |
| 15.01.2014 | Everton | — | € 7.8M |
| 31.01.2012 | Rangers | Everton | € 6.6M |
| 20.08.2010 | Rapid Vienna | Rangers | € 4.9M |
| 01.07.2009 | Zulte Waregem | Rapid Vienna | € 200K |
| 01.07.2008 | Zulte Waregem | Rapid Vienna | Loan |