Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 07/2025 - 06/2027 |  | TSG Hoffenheim |  Germany | Ass. Coach |
| 01/2024 - 06/2024 |  | Bayern Munich | Germany | Ass. Coach |
| 12/2022 - 06/2023 |  | Galatasaray |  Turkey | Ass. Coach |
| 07/2019 - 06/2021 |  | RB Leipzig | Germany | Ass. Coach |
Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 07/2012 - 06/2015 |  | 1860 Munich | Germany | Defence | 2 |
| 07/2011 - 06/2012 |  | FC St. Pauli | Germany | Defence | 2 |
| 11/2011 - 12/2011 |  | FC St. Pauli II | Germany | Defence | |
| 07/2010 - 06/2011 | | FC St. Pauli | Germany | Defence | 28 |
| 08/2008 - 06/2009 |  | Ipswich Town |  England | Defence | 22 |
| 07/2003 - 08/2008 |  | Fulham FC | England | Defence | 2 |
| 01/2003 - 06/2003 |  | Wimbledon FC | England | Defence | 15 |
| 07/2000 - 12/2002 |  | Arsenal FC | England | Defence | 29 |
| 07/1999 - 06/2000 |  | Arsenal FC U19 | England | Defence | |
| 07/1998 - 06/1999 |  | FC Schalke 04 U17 | Germany | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bundesliga | 9 | 8 | 1 | 1 | 755 | - | - | - | 6 | - | - | » All matches |
| 2. Bundesliga | 59 | 51 | 8 | 10 | 4.501 | 2 | - | 4 | 11 | 1 | - | » All matches |
| DFB-Pokal | 6 | 6 | - | 3 | 513 | - | - | - | 3 | - | - | » All matches |
| Regionalliga Nord | 2 | 2 | - | 1 | 168 | - | - | - | 1 | - | - | » All matches |
| Premier League | 125 | 115 | 10 | 18 | 10.227 | 2 | - | 2 | 17 | 1 | - | » All matches |
| Championship | 32 | 30 | 2 | 2 | 2.691 | 1 | - | - | 8 | - | - | » All matches |
| FA Cup | 13 | 13 | - | 1 | 1.212 | 2 | - | - | 2 | - | - | » All matches |
| League Cup | 9 | 7 | 2 | 2 | 667 | - | - | - | 2 | - | - | » All matches |
| Total | 255 | 232 | 23 | 38 | 20.734 | 7 | - | - | 50 | 2 | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | U21 Friendlies | 5 | 4 | 1 | 3 | 322 | - | - | - | - | - | - | » All matches |
 | U21 EURO | 4 | 4 | - | 1 | 335 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 10 | 10 | - | 2 | 877 | - | - | - | - | - | - | » All matches |
| Total | 19 | 18 | 1 | 6 | 1.534 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 Friendlies | 6 | 5 | 1 | 3 | 458 | 1 | - | - | - | - | - | » All matches |
| Total | 6 | 5 | 1 | 3 | 458 | 1 | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 Friendlies | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| U19 EURO | 4 | 3 | 1 | 2 | 272 | 2 | - | - | 1 | - | - | » All matches |
| U19 EURO Qualifiers | 2 | 2 | - | 1 | 150 | - | - | - | - | - | - | » All matches |
| Total | 7 | 6 | 1 | 3 | 512 | 2 | - | - | 1 | - | - |