Transfers
| Date | From | To | Type |
|---|---|---|---|
| 01.08.2011 | NAC Breda | — | Free |
| 01.07.2007 | Feyenoord | NAC Breda | Free |
| 01.07.2006 | — | Feyenoord | Free |
| 01.01.2006 | Crystal Palace | — | Free |
| 01.07.2004 | Borussia Mönchengladbach | Crystal Palace | € 700K |
| 01.07.2003 | Panathinaikos | Borussia Mönchengladbach | Free |
| 01.07.2001 | PSV Eindhoven | Panathinaikos | € 2.3M |
| 01.07.1998 | — | PSV Eindhoven | Free |