| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 1990 | AZ Alkmaar | - | 46 | 5 | 1993 | (Player) |
| 1990 | Telstar | - | 4 | 0 | 1991 | (Player) |
| 1991 | AZ Alkmaar | - | 46 | 5 | 1992 | (Player) |
| 1992 | - | - | 31 | 12 | 1996 | (Player) |
| 1996 | Boavista | - | 29 | 20 | 1997 | (Player) |
| 1997 | Leeds United | Β£2,000,000 | 69 | 34 | 1999 | (Player) |
| 1999 | AtlΓ©tico Madrid | Β£12,000,000 | 34 | 24 | 2000 | (Player) |
| 2000 | Chelsea | Β£15,000,000 | 136 | 70 | 2004 | (Player) |
| 2004 | Middlesbrough | Free | 58 | 23 | 2006 | (Player) |
| 2006 | Charlton Athletic | Free | 25 | 2 | 2007 | (Player) |
| 2007 | Cardiff City | Free | 36 | 7 | 2008 | (Player) |
| 2014 | Burton Albion | - | 2015 | (Manager) | ||
| 2015 | Queens Park Rangers | - | 2016 | (Manager) | ||
| 2017 | Northampton Town | - | 2018 | (Manager) | ||
| 2021 | Burton Albion | - | 2022 | (Manager) |