Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 01/2003 - 06/2007 |  | Preston North End |  England | Defence | 3 |
| 11/2000 - 01/2003 |  | Derby County | England | Defence | |
| 07/1998 - 11/2000 |  | VfL Wolfsburg |  Germany | Defence | 5 |
| 06/1997 - 06/1998 |  | Aberdeen FC |  Scotland | Defence | |
| 03/1997 - 06/1997 |  | Nottingham Forest | England | Defence | |
| 07/1991 - 03/1997 |  | Celtic FC | Scotland | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Europa League | 16 | 13 | 3 | 2 | 1.249 | 1 | - | - | 1 | - | - | » All matches |
| Europa League Qual. | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| UI-Cup | 4 | 3 | 1 | - | 319 | - | - | - | - | - | - | » All matches |
| Bundesliga | 50 | 46 | 4 | 5 | 4.064 | 3 | - | 1 | 13 | - | - | » All matches |
| DFB-Pokal | 7 | 6 | 1 | - | 593 | 1 | - | - | - | - | - | » All matches |
| Premier League | 19 | 15 | 4 | 3 | 1.259 | - | - | - | 6 | - | 1 | » All matches |
| Championship | 115 | 104 | 11 | 44 | 8.881 | 5 | - | - | 17 | - | 1 | » All matches |
| FA Cup | 9 | 9 | - | 4 | 755 | 2 | - | - | 2 | - | - | » All matches |
| League Cup | 6 | 4 | 2 | 1 | 472 | - | - | - | 2 | - | - | » All matches |
| Playoffs | 2 | 2 | - | 1 | 154 | - | - | - | - | - | - | » All matches |
| Premiership | 114 | 92 | 22 | 11 | 8.440 | 8 | - | - | 11 | - | 2 | » All matches |
| Total | 343 | 295 | 48 | 71 | 26.276 | 20 | - | - | 52 | - | 4 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Friendlies | 6 | 4 | 2 | 3 | 249 | - | - | - | - | - | - | » All matches |
| EURO Qualifiers | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 7 | 5 | 2 | 3 | 339 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 EURO | 3 | 3 | - | 1 | 243 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 3 | 3 | - | - | 270 | - | - | - | - | - | - | » All matches |
| Total | 6 | 6 | - | 1 | 513 | - | - | - | - | - | - |