Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 07/2026 - 06/2027 |  | FC Schalke 04 II |  Germany | Defence | |
| 08/2023 - 06/2026 |  | FC Schalke 04 | Germany | Defence | 26 |
| 08/2018 - 08/2023 |  | Bristol City |  England | Defence | 22 |
| 07/2018 - 08/2018 |  | Chelsea FC | England | Defence | |
| 07/2016 - 06/2018 |  | Fulham FC | England | Defence | 26 |
| 01/2015 - 06/2016 |  | Middlesbrough FC | England | Defence | 26 |
| 01/2015 - 01/2015 | | Chelsea FC | England | Defence | |
| 07/2014 - 01/2015 |  | 1. FC Köln | Germany | Defence | 3 |
| 09/2014 - 10/2014 |  | 1. FC Köln II | Germany | Defence | |
| 07/2013 - 06/2014 | | Chelsea FC | England | Defence | 33 |
| 07/2013 - 06/2014 |  | Chelsea FC U21 | England | Defence | |
| 08/2011 - 06/2013 |  | Vitesse |  Netherlands | Defence | 2 |
| 01/2011 - 08/2011 |  | Chelsea FC U19 | England | Defence | |
| 05/2010 - 12/2010 |  | Sigma Olomouc |  Czech Republic | Defence | 28 |
| 07/2009 - 12/2010 |  | Sigma Olomouc U19 | Czech Republic | Defence | |
| 07/2007 - 06/2009 |  | Sigma Olomouc U17 | Czech Republic | Defence | |
| 07/2005 - 06/2007 |  | Sigma Olomouc U15 | Czech Republic | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 1 | - | 1 | - | 1 | - | - | - | - | - | - | » All matches |
| Europa League Qual. | 3 | 3 | - | - | 259 | - | - | - | - | - | 1 | » All matches |
| 2. Bundesliga | 48 | 37 | 11 | 4 | 3.422 | 2 | - | 1 | 2 | - | - | » All matches |
| DFB-Pokal | 2 | 1 | 1 | 1 | 118 | - | - | - | - | - | - | » All matches |
| Regionalliga West | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Premier League | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Championship | 256 | 235 | 21 | 14 | 21.134 | 2 | - | 4 | 12 | - | 1 | » All matches |
| FA Cup | 13 | 12 | 1 | 2 | 1.095 | - | - | 1 | 2 | - | - | » All matches |
| League Cup | 6 | 5 | 1 | 1 | 458 | - | - | 1 | - | - | - | » All matches |
| Playoffs | 4 | 2 | 2 | - | 209 | - | - | - | - | - | - | » All matches |
| Eredivisie | 63 | 62 | 1 | 5 | 5.473 | 1 | - | - | 3 | - | - | » All matches |
| KNVB beker | 7 | 7 | - | - | 660 | - | - | - | 1 | - | - | » All matches |
| Playoffs Eredivisie | 4 | 4 | - | - | 360 | 1 | - | - | - | - | - | » All matches |
| 1. fotbalová liga | 5 | 3 | 2 | 1 | 271 | - | - | - | - | - | - | » All matches |
| Total | 416 | 375 | 41 | 28 | 33.820 | 6 | - | - | 20 | - | 2 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WC Qualifiers Europe | 6 | 6 | - | - | 540 | - | - | - | 3 | - | - | » All matches |
| Friendlies | 13 | 9 | 4 | 2 | 904 | 2 | - | - | - | - | - | » All matches |
| EURO | 5 | 5 | - | - | 450 | - | - | 1 | 1 | - | - | » All matches |
| EURO Qualifiers | 2 | 1 | 1 | - | 110 | - | - | - | - | - | - | » All matches |
| Nations League B | 5 | 5 | - | - | 450 | - | - | - | - | - | - | » All matches |
| Total | 31 | 26 | 5 | 2 | 2.454 | 2 | - | - | 4 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 3 | 2 | 1 | - | 184 | - | - | - | - | - | - | » All matches |
| U21 EURO | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 7 | 7 | - | - | 615 | - | - | - | - | 1 | - | » All matches |
| Total | 12 | 11 | 1 | - | 979 | - | - | - | - | 1 | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 Friendlies | 2 | 2 | - | - | 180 | 1 | - | - | - | - | - | » All matches |
| Total | 2 | 2 | - | - | 180 | 1 | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 EURO | 5 | 5 | - | - | 480 | 1 | - | - | - | - | - | » All matches |
| U19 EURO Qualifiers | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 6 | 6 | - | - | 570 | 1 | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U17 EURO | 3 | 3 | - | - | 245 | - | - | - | - | - | 1 | » All matches |
| Total | 3 | 3 | - | - | 245 | - | - | - | - | - | 1 |