Transfers
| Date | From | To | Type |
|---|---|---|---|
| 26.02.2019 | — | Aberdeen | — |
| 07.07.2015 | Nottingham Forest | — | Free |
| 01.06.2015 | Brighton | Nottingham Forest | — |
| 04.11.2014 | Nottingham Forest | Brighton | Loan |
| 27.07.2012 | — | Nottingham Forest | Free |
| 08.07.2011 | Wolves | — | € 1M |
| 13.01.2011 | Wolves | — | Loan |
| 19.10.2010 | Wolves | — | Loan |
| 06.07.2009 | Sunderland | Wolves | € 2.4M |
| 01.08.2008 | Sunderland | Sheffield Utd | Loan |
| 21.03.2008 | Sunderland | — | Loan |
| 01.08.2007 | — | Sunderland | € 5.2M |