Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 07/2026 - 06/2027 |  | Bonner SC U19 |  Germany | Manager |
| 07/2024 - 06/2026 |  | Bonner SC U17 | Germany | Manager |
| 07/2019 - 06/2020 |  | Viktoria Köln U19 | Germany | Manager |
| 05/2019 - 06/2019 |  | Viktoria Köln | Germany | Manager |
| 07/2018 - 05/2019 | | Viktoria Köln U19 | Germany | Manager |
| 07/2016 - 06/2017 |  | VfL Alfter | Germany | Manager |
| 07/2015 - 06/2016 |  | SC Hauenstein | Germany | Manager |
| 10/2013 - 03/2015 |  | EGC Wirges | Germany | Manager |
| 01/2012 - 03/2012 | | Bonner SC U19 | Germany | Manager |
| 08/2008 - 11/2008 |  | VfR Aalen | Germany | Manager |
| 12/2005 - 04/2006 |  | MSV Duisburg | Germany | Manager |
| 07/2002 - 03/2003 |  | Germany U21 | Germany | Manager |
National teams managed
| Season | Team | Position | |
|---|---|---|---|
| U21 Friendlies 2003 | | Germany U21 | Manager |
| U21 EURO Qualifiers 2002/2003 | | Germany U21 | Manager |
| U21 Friendlies 2002 | | Germany U21 | Manager |
Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 07/1998 - 06/2002 |  | Borussia Dortmund | Germany | Defence | 5 |
| 07/1995 - 06/1998 | | Borussia Dortmund | Germany | Defence | 15 |
| 07/1991 - 06/1995 |  | Juventus |  Italy | Defence | |
| 07/1989 - 06/1991 |  | Bayern Munich | Germany | Defence | |
| 07/1987 - 06/1989 |  | 1. FC Köln | Germany | Defence | |
| 07/1983 - 06/1987 |  | Waldhof Mannheim | Germany | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 42 | 41 | 1 | 2 | 3.680 | 2 | - | - | 4 | - | - | » All matches |
| Champions League Qual. | 4 | 4 | - | 1 | 352 | - | - | - | - | - | - | » All matches |
| Europa League | 36 | 35 | 1 | 2 | 2.949 | 4 | - | - | 2 | - | 2 | » All matches |
| UEFA Super Cup | 1 | 1 | - | 1 | 73 | - | - | - | 1 | - | - | » All matches |
| Bundesliga | 398 | 390 | 8 | 23 | 34.603 | 28 | - | 12 | 85 | 1 | 1 | » All matches |
| DFB-Pokal | 27 | 27 | - | 1 | 2.506 | 3 | - | - | 7 | - | - | » All matches |
| Franz-Beckenbauer-Supercup | 4 | 4 | - | 2 | 311 | 1 | - | - | - | - | - | » All matches |
| League Cup | 4 | 4 | - | 2 | 291 | 1 | - | - | - | - | - | » All matches |
| Serie A | 102 | 102 | - | 6 | 8.834 | 8 | - | - | 18 | 1 | 1 | » All matches |
| Coppa Italia | 20 | 20 | - | - | 1.829 | 1 | - | - | 5 | - | 1 | » All matches |
| Total | 638 | 628 | 10 | 40 | 55.428 | 48 | - | - | 122 | 2 | 5 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | World Cup | 13 | 13 | - | - | 1.200 | - | - | - | 1 | - | - | » All matches |
| WC Qualifiers Europe | 12 | 12 | - | 1 | 1.065 | - | - | - | 1 | - | - | » All matches |
| Friendlies | 61 | 61 | - | 13 | 5.057 | 2 | - | - | 2 | - | 1 | » All matches |
| EURO | 10 | 10 | - | 1 | 823 | - | - | - | 1 | - | - | » All matches |
| EURO Qualifiers | 9 | 9 | - | 1 | 766 | - | - | - | 2 | - | - | » All matches |
| Total | 105 | 105 | - | 16 | 8.911 | 2 | - | - | 7 | - | 1 | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 4 | 4 | - | - | 360 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 7 | 6 | 1 | - | 585 | - | - | - | - | - | - | » All matches |
| Total | 11 | 10 | 1 | - | 945 | - | - | - | - | - | - |