| Name | Age | Position | Nationality |
|---|---|---|---|
| Kevin Müller | 35 | Goalkeeper | Germany |
| Loris Karius | 33 | Goalkeeper | Germany |
| Johannes Siebeking | 20 | Goalkeeper | Germany |
| Robin Gosens | 32 | Defence | Germany |
| Maximilian Wöber | 28 | Defence | Austria |
| Timo Becker | 29 | Defence | Germany |
| Nikola Katić | 29 | Defence | Bosnia-Herzegovina |
| Hasan Kuruçay | 29 | Defence | Turkey |
| Adrian Gantenbein | 25 | Defence | Switzerland |
| Vitalie Becker | 21 | Defence | Germany |
| Mertcan Ayhan | 20 | Defence | Turkey |
| Kenan Karaman | 32 | Midfield | Turkey |
| Janik Bachmann | 30 | Midfield | Germany |
| Finn Porath | 29 | Midfield | Germany |
| Dejan Ljubicic | 28 | Midfield | Austria |
| Ron Schallenberg | 28 | Midfield | Germany |
| Dina Ebimbe | 25 | Midfield | Cameroon |
| Satoshi Tanaka | 24 | Midfield | Japan |
| Adil Aouchiche | 24 | Midfield | Algeria |
| Soufiane El-Faouzi | 24 | Midfield | Germany |
| Luca Vozar | 19 | Midfield | Germany |
| Bryan Lasme | 27 | Offence | France |
| Edin Džeko | 40 | Offence | Bosnia-Herzegovina |
| Hwang Heechan | 30 | Offence | South Korea |
| Moussa Sylla | 26 | Offence | Mali |
| Chikwubuike Adamu | 25 | Offence | Nigeria |
| Emil Højlund | 21 | Offence | Denmark |