Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 07/2021 - 08/2023 |  | Hertha BSC |  Germany | Midfield | 27 |
| 09/2020 - 06/2021 |  | AC Monza |  Italy | Midfield | 7 |
| 08/2020 - 09/2020 |  | ACF Fiorentina | Italy | Midfield | 27 |
| 01/2020 - 07/2020 |  | Beşiktaş |  Turkey | Midfield | 99 |
| 07/2019 - 01/2020 | | ACF Fiorentina | Italy | Midfield | 10 |
| 07/2019 - 07/2019 |  | US Sassuolo | Italy | Midfield | |
| 01/2019 - 06/2019 |  | FC Barcelona |  Spain | Midfield | 19 |
| 07/2018 - 01/2019 | | US Sassuolo | Italy | Midfield | 27 |
| 08/2017 - 07/2018 |  | Eintracht Frankfurt | Germany | Midfield | 17 |
| 07/2016 - 08/2017 |  | UD Las Palmas | Spain | Midfield | 7 |
| 01/2016 - 06/2016 |  | AC Milan | Italy | Midfield | 72 |
| 07/2015 - 12/2015 |  | FC Schalke 04 | Germany | Midfield | |
| 08/2013 - 06/2015 | | FC Schalke 04 | Germany | Midfield | 9 |
| 07/2012 - 08/2013 | | AC Milan | Italy | Midfield | 10 |
| 08/2010 - 06/2012 | | AC Milan | Italy | Midfield | 27 |
| 08/2009 - 08/2010 |  | Portsmouth FC |  England | Midfield | 23 |
| 07/2009 - 08/2009 |  | Tottenham Hotspur | England | Midfield | 28 |
| 01/2009 - 06/2009 |  | Borussia Dortmund | Germany | Midfield | 22 |
| 07/2008 - 01/2009 | | Tottenham Hotspur | England | Midfield | 23 |
| 08/2007 - 06/2008 | | Tottenham Hotspur | England | Midfield | 17 |
| 07/2006 - 07/2007 | | Hertha BSC | Germany | Midfield | 17 |
| 07/2004 - 07/2007 |  | Hertha BSC II | Germany | Midfield | 27 |
| 07/2005 - 06/2006 | | Hertha BSC | Germany | Midfield | 27 |
| 07/2003 - 06/2005 |  | Hertha BSC U19 | Germany | Midfield | |
| 07/2002 - 06/2004 |  | Hertha BSC U17 | Germany | Midfield | |
| 07/2000 - 06/2002 |  | Hertha BSC U15 | Germany | Midfield |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 33 | 26 | 7 | 14 | 2.295 | 5 | - | 2 | 6 | - | - | » All matches |
| Champions League Qual. | 2 | 2 | - | 2 | 170 | 2 | - | - | 1 | - | - | » All matches |
| Europa League | 9 | 6 | 3 | 4 | 540 | 1 | - | - | 3 | - | 1 | » All matches |
| Bundesliga | 163 | 115 | 48 | 51 | 10.521 | 16 | 1 | 16 | 41 | 1 | 1 | » All matches |
| DFB-Pokal | 16 | 13 | 3 | 6 | 1.095 | - | - | 1 | 5 | - | - | » All matches |
| Regionalliga Nord | 29 | 27 | 2 | 13 | 2.205 | 5 | - | - | 12 | 1 | 1 | » All matches |
| Relegation Play-offs Bundesliga | 1 | 1 | - | 1 | 90 | - | - | - | 1 | - | - | » All matches |
| Premier League | 36 | 27 | 9 | 10 | 2.461 | 3 | 1 | 2 | 9 | - | - | » All matches |
| FA Cup | 7 | 6 | 1 | 2 | 540 | 2 | 1 | - | 2 | - | - | » All matches |
| League Cup | 5 | 1 | 4 | - | 164 | - | - | - | - | - | - | » All matches |
| Serie A | 112 | 76 | 36 | 40 | 6.833 | 16 | 2 | 11 | 21 | 2 | 2 | » All matches |
| Serie B | 25 | 24 | 1 | 22 | 1.778 | 5 | 3 | 4 | 4 | - | - | » All matches |
| Coppa Italia | 8 | 6 | 2 | 4 | 576 | 1 | - | - | 2 | - | - | » All matches |
| Supercoppa | 1 | 1 | - | 1 | 82 | 1 | - | - | 1 | - | - | » All matches |
| Primera División | 31 | 28 | 3 | 13 | 2.235 | 10 | - | 4 | 11 | 1 | 1 | » All matches |
| Copa del Rey | 2 | 1 | 1 | 1 | 81 | - | - | - | 1 | - | - | » All matches |
| SüperLig | 11 | 6 | 5 | 5 | 602 | 3 | - | 1 | 1 | - | - | » All matches |
| Total | 491 | 366 | 125 | 189 | 32.268 | 70 | 8 | 41 | 121 | 5 | 6 | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 DFB-Pokal | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| U19 Bundesliga Nord/Nordost | 29 | 26 | 3 | 12 | 2.191 | 6 | - | - | 5 | 1 | - | » All matches |
| Total | 30 | 27 | 3 | 12 | 2.281 | 6 | - | - | 5 | 1 | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U17 Championship | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 1 | 1 | - | - | 90 | - | - | - | - | - | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | World Cup | 7 | 6 | 1 | 4 | 549 | 1 | - | - | - | - | - | » All matches |
| WC Qualifiers Africa | 1 | - | 1 | - | 12 | 1 | - | - | - | - | - | » All matches |
| Friendlies | 4 | 2 | 2 | 2 | 201 | - | - | - | - | - | - | » All matches |
 | Africa Cup Qual. | 1 | 1 | - | 1 | 53 | - | - | - | - | - | - | » All matches |
| Total | 13 | 9 | 4 | 7 | 815 | 2 | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 4 | 3 | 1 | 1 | 264 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 2 | 2 | - | 1 | 168 | - | - | - | 1 | - | - | » All matches |
| Total | 6 | 5 | 1 | 2 | 432 | - | - | - | 1 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 Friendlies | 2 | 2 | - | 1 | 152 | - | - | - | - | - | - | » All matches |
| Total | 2 | 2 | - | 1 | 152 | - | - | - | - | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U19 Friendlies | 3 | 3 | - | 2 | 209 | 1 | - | - | - | - | - | » All matches |
| U19 EURO | 4 | 4 | - | 2 | 333 | 2 | - | - | 1 | - | - | » All matches |
| U19 EURO Qualifiers | 6 | 6 | - | 1 | 527 | 4 | - | - | 1 | - | - | » All matches |
| Total | 13 | 13 | - | 5 | 1.069 | 7 | - | - | 2 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U17 EURO Qualifiers | 3 | 3 | - | - | 270 | - | - | - | - | - | - | » All matches |
| Total | 3 | 3 | - | - | 270 | - | - | - | - | - | - |