Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 02/2023 - 01/2025 |  | Belgium |  Belgium | Ass. Coach |
| 12/2021 - 09/2022 |  | RB Leipzig |  Germany | Ass. Coach |
| 10/2019 - 06/2021 |  | Spartak Moskva |  Russia | Ass. Coach |
| 04/2019 - 06/2019 |  | VfB Stuttgart II | Germany | Manager |
| 10/2018 - 10/2018 |  | VfB Stuttgart | Germany | Manager |
| 12/2016 - 06/2018 | | VfB Stuttgart II | Germany | Manager |
| 01/2016 - 12/2016 | | VfB Stuttgart II | Germany | Ass. Coach |
| 09/2016 - 09/2016 | | VfB Stuttgart | Germany | Ass. Coach |
| 07/2014 - 06/2015 |  | VfB Stuttgart U17 | Germany | Ass. Coach |
National teams managed
| Season | Team | Position | |
|---|---|---|---|
| Friendlies 2025 | | Belgium | Ass. Coach |
| EURO 2024 Germany | | Belgium | Ass. Coach |
| Friendlies 2024 | | Belgium | Ass. Coach |
| EURO Qualifiers 2023/2024 | | Belgium | Ass. Coach |
| Friendlies 2023 | | Belgium | Ass. Coach |
Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 10/2011 - 06/2012 |  | SC Freiburg | Germany | Defence | 20 |
| 10/2011 - 10/2011 |  | SC Freiburg II | Germany | Defence | |
| 01/2008 - 06/2011 |  | Celtic FC |  Scotland | Defence | 2 |
| 07/2006 - 12/2007 |  | Sevilla FC |  Spain | Defence | 24 |
| 07/2001 - 06/2006 | | VfB Stuttgart | Germany | Defence | 2 |
| 07/2000 - 06/2001 | | VfB Stuttgart | Germany | Defence | 26 |
| 07/1999 - 06/2001 | | VfB Stuttgart II | Germany | Defence | |
| 07/1999 - 12/1999 |  | VfB Stuttgart U19 | Germany | Defence | |
| 07/1997 - 07/1999 | | VfB Stuttgart U17 | Germany | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 14 | 12 | 2 | 1 | 1.083 | 1 | - | 1 | 1 | - | - | » All matches |
| Champions League Qual. | 5 | 5 | - | - | 450 | - | - | - | 1 | - | - | » All matches |
| Europa League | 30 | 27 | 3 | 1 | 2.523 | 1 | - | - | - | - | - | » All matches |
| UI-Cup | 6 | 5 | 1 | 2 | 434 | - | - | - | - | - | - | » All matches |
| Bundesliga | 163 | 152 | 11 | 15 | 13.639 | 1 | - | 9 | 22 | - | - | » All matches |
| DFB-Pokal | 13 | 12 | 1 | 1 | 1.172 | - | - | - | 2 | - | - | » All matches |
| Regionalliga Süd (1994-2012) | 32 | 30 | 2 | 7 | 2.616 | - | - | - | 2 | - | - | » All matches |
| League Cup | 5 | 5 | - | 1 | 470 | - | - | - | - | - | - | » All matches |
| Premiership | 79 | 78 | 1 | 8 | 6.769 | 1 | - | - | 3 | - | - | » All matches |
| FA Cup | 1 | 1 | - | 1 | 84 | - | - | - | - | - | - | » All matches |
| Primera División | 15 | 9 | 6 | 4 | 792 | - | - | - | 2 | - | 1 | » All matches |
| Copa del Rey | 6 | 6 | - | 2 | 475 | - | - | - | - | - | - | » All matches |
| Total | 369 | 342 | 27 | 43 | 30.507 | 4 | - | 10 | 33 | - | 1 | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U17 Championship | 2 | 2 | - | - | 210 | - | - | - | - | - | - | » All matches |
| Total | 2 | 2 | - | - | 210 | - | - | - | - | - | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WC Qualifiers Europe | 1 | - | 1 | - | 9 | - | - | - | - | - | - | » All matches |
| Friendlies | 17 | 12 | 5 | 10 | 888 | - | - | 3 | 2 | - | - | » All matches |
| Confederations Cup | 2 | 2 | - | - | 210 | - | - | 1 | - | - | - | » All matches |
| EURO Qualifiers | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 21 | 15 | 6 | 10 | 1.197 | - | - | - | 2 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 7 | 6 | 1 | 1 | 602 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 8 | 7 | 1 | 1 | 692 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 World Cup | 2 | - | 2 | - | 18 | - | - | - | - | - | - | » All matches |
| U20 Friendlies | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Total | 4 | 2 | 2 | - | 198 | - | - | - | - | - | - |