Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 08/2025 - 07/2026 |  | NAC Breda |  Netherlands | Midfield | 90 |
| 08/2021 - 06/2025 |  | Holstein Kiel |  Germany | Midfield | 10 |
| 08/2020 - 06/2021 |  | Blackburn Rovers |  England | Midfield | 10 |
| 09/2019 - 07/2020 | | Blackburn Rovers | England | Midfield | 22 |
| 07/2015 - 06/2019 |  | Hamburger SV | Germany | Midfield | 8 |
| 09/2014 - 06/2015 | | Hamburger SV | Germany | Midfield | 18 |
| 07/2014 - 08/2014 |  | Tottenham Hotspur | England | Midfield | 14 |
| 01/2014 - 06/2014 |  | Fulham FC | England | Midfield | 10 |
| 07/2013 - 01/2014 | | Tottenham Hotspur | England | Midfield | 14 |
| 01/2013 - 06/2013 | | Tottenham Hotspur | England | Midfield | 23 |
| 07/2011 - 01/2013 |  | FC Schalke 04 | Germany | Midfield | 10 |
| 07/2010 - 06/2011 |  | 1. FSV Mainz 05 | Germany | Midfield | 18 |
| 01/2010 - 06/2010 |  | VfL Bochum | Germany | Midfield | 17 |
| 07/2009 - 01/2010 | | FC Schalke 04 | Germany | Midfield | 7 |
| 07/2008 - 06/2009 |  | Alemannia Aachen | Germany | Midfield | 18 |
| 03/2008 - 06/2009 |  | Alemannia Aachen II | Germany | Midfield | |
| 07/2007 - 06/2008 | | Alemannia Aachen | Germany | Midfield | 51 |
| 07/2006 - 06/2008 |  | Alemannia Aachen U19 | Germany | Midfield | |
| 07/2005 - 06/2007 |  | Alemannia Aachen U17 | Germany | Midfield | |
| 07/2004 - 06/2005 |  | Alemannia Aachen U15 | Germany | Midfield | |
| 07/2003 - 06/2004 |  | Bor. Mönchengladbach U15 | Germany | Midfield |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 6 | 6 | - | 4 | 490 | - | - | 3 | 1 | - | - | » All matches |
| Europa League | 21 | 13 | 8 | 8 | 1.289 | 2 | - | - | 2 | - | - | » All matches |
| Europa League Qual. | 5 | 4 | 1 | 3 | 322 | 1 | - | 1 | 1 | - | - | » All matches |
| Bundesliga | 225 | 184 | 41 | 79 | 16.168 | 26 | - | 33 | 24 | - | 2 | » All matches |
| 2. Bundesliga | 137 | 112 | 25 | 54 | 9.813 | 19 | - | 29 | 23 | 1 | - | » All matches |
| DFB-Pokal | 23 | 19 | 4 | 4 | 1.755 | 5 | 1 | 3 | 1 | - | - | » All matches |
| Franz-Beckenbauer-Supercup | 1 | 1 | - | - | 120 | - | - | - | - | - | - | » All matches |
| Relegation Play-offs Bundesliga | 2 | 2 | - | 2 | 135 | - | - | - | 1 | - | - | » All matches |
| Oberliga Nordrhein (1979-2008) | 10 | 9 | 1 | 4 | 750 | 5 | - | - | - | - | - | » All matches |
| Premier League | 38 | 21 | 17 | 13 | 2.041 | 2 | - | 4 | 5 | - | - | » All matches |
| Championship | 54 | 36 | 18 | 28 | 3.140 | 3 | - | 5 | 5 | - | - | » All matches |
| League Cup | 4 | 3 | 1 | 2 | 216 | 1 | - | - | - | - | - | » All matches |
| Eredivisie | 30 | 25 | 5 | 20 | 1.947 | 1 | - | 5 | 2 | - | 1 | » All matches |
| KNVB beker | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 557 | 436 | 121 | 221 | 38.276 | 65 | 1 | 83 | 65 | 1 | 3 | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 Bundesliga West | 22 | 21 | 1 | 9 | 1.804 | 12 | - | - | 1 | - | - | » All matches |
| Total | 22 | 21 | 1 | 9 | 1.804 | 12 | - | - | 1 | - | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Friendlies | 2 | 2 | - | 2 | 165 | - | - | - | - | - | - | » All matches |
| EURO Qualifiers | 1 | - | 1 | - | 3 | - | - | - | - | - | - | » All matches |
| Total | 3 | 2 | 1 | 2 | 168 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 9 | 8 | 1 | 4 | 685 | 6 | - | 2 | 1 | - | - | » All matches |
| U21 EURO | 3 | 3 | - | 1 | 226 | 1 | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 12 | 11 | 1 | 2 | 933 | 7 | - | 3 | 1 | - | - | » All matches |
| Total | 24 | 22 | 2 | 7 | 1.844 | 14 | - | 5 | 2 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 World Cup | 5 | 5 | - | 3 | 405 | 2 | - | - | 1 | - | - | » All matches |
| U20 Friendlies | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 6 | 6 | - | 3 | 495 | 2 | - | - | 1 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 Friendlies | 6 | 6 | - | 3 | 474 | 1 | - | 2 | 1 | - | - | » All matches |
| U19 EURO Qualifiers | 6 | 6 | - | 2 | 476 | 3 | - | - | - | - | - | » All matches |
| Total | 12 | 12 | - | 5 | 950 | 4 | - | 2 | 1 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U18 Friendlies | 2 | 1 | 1 | - | 135 | - | - | - | - | - | - | » All matches |
| Total | 2 | 1 | 1 | - | 135 | - | - | - | - | - | - |