Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 10/2017 - 06/2019 |  | FC Schalke 04 |  Germany | Defence | 21 |
| 07/2015 - 06/2017 | | FC Schalke 04 | Germany | Defence | 27 |
| 07/2014 - 07/2015 |  | SC Freiburg | Germany | Defence | 22 |
| 07/2012 - 06/2014 |  | Fulham FC |  England | Defence | 27 |
| 07/2011 - 06/2012 |  | 1. FC Köln | Germany | Defence | 5 |
| 07/2007 - 06/2011 |  | VfL Wolfsburg | Germany | Midfield | 20 |
| 07/2002 - 06/2007 | | SC Freiburg | Germany | Midfield | 22 |
| 07/2001 - 06/2002 |  | SC Freiburg U19 | Germany | Midfield |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 6 | 6 | - | - | 540 | - | - | - | - | - | - | » All matches |
| Europa League | 17 | 16 | 1 | 6 | 1.412 | - | - | 2 | 2 | - | - | » All matches |
| Bundesliga | 249 | 235 | 14 | 30 | 20.672 | 10 | - | 14 | 28 | - | - | » All matches |
| 2. Bundesliga | 81 | 77 | 4 | 14 | 6.763 | - | - | 4 | 7 | - | - | » All matches |
| DFB-Pokal | 31 | 27 | 4 | 4 | 2.475 | 2 | - | 1 | 4 | - | - | » All matches |
| Premier League | 66 | 65 | 1 | 4 | 5.693 | 1 | - | 5 | 7 | - | - | » All matches |
| FA Cup | 4 | 4 | - | - | 390 | - | - | - | 1 | - | - | » All matches |
| League Cup | 2 | 1 | 1 | - | 140 | - | - | - | - | - | - | » All matches |
| Total | 456 | 431 | 25 | 58 | 38.085 | 13 | - | - | 49 | - | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Friendlies | 1 | - | 1 | - | 35 | - | - | - | - | - | - | » All matches |
| EURO Qualifiers | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 2 | 1 | 1 | - | 125 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 4 | 3 | 1 | 3 | 207 | - | - | - | - | - | - | » All matches |
| U21 EURO | 4 | 3 | 1 | - | 280 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 12 | 10 | 2 | 2 | 930 | - | - | - | - | - | - | » All matches |
| Total | 20 | 16 | 4 | 5 | 1.417 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 Friendlies | 2 | 2 | - | 1 | 136 | - | - | - | - | - | - | » All matches |
| Total | 2 | 2 | - | 1 | 136 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 Friendlies | 4 | 2 | 2 | - | 242 | - | - | - | - | - | - | » All matches |
| U19 EURO | 2 | 2 | - | - | 180 | 1 | - | - | - | - | - | » All matches |
| U19 EURO Qualifiers | 5 | 4 | 1 | 2 | 323 | 2 | - | - | - | - | - | » All matches |
| Total | 11 | 8 | 3 | 2 | 745 | 3 | - | - | - | - | - |