| Name | Age | Position | Nationality |
|---|---|---|---|
| Oliver Baumann | 35 | Goalkeeper | Germany |
| Luca Philipp | 24 | Goalkeeper | Germany |
| Lukas Petersson | 21 | Goalkeeper | Iceland |
| Koki Machida | 28 | Defence | Japan |
| Albian Hajdari | 22 | Defence | Switzerland |
| Arthur Chaves | 24 | Defence | Brazil |
| Robin Hranac | 25 | Defence | Czech Republic |
| Hennes Behrens | 20 | Defence | Germany |
| Kelven Frees | 20 | Defence | Germany |
| Alexander Prass | 24 | Midfield | Austria |
| Umut Tohumcu | 21 | Midfield | Germany |
| Leon Avdullahu | 34 | Midfield | Switzerland |
| Luka Đurić | 22 | Midfield | Germany |
| Bazoumana Touré | 19 | Midfield | Ivory Coast |
| Adam Hložek | 23 | Offence | Czech Republic |
| David Mokwa Ntusu | 21 | Offence | France |
| Precious Benjamin | 19 | Offence | Nigeria |
| Valentin Gendrey | 25 | Right-Back | France |
| Wouter Burger | 24 | Defensive Midfield | Netherlands |
| Vladimir Coufal | 33 | Right-Back | Czech Republic |
| Ozan Kabak | 25 | Centre-Back | Turkey |
| Mërgim Berisha | 27 | Centre-Forward | Germany |
| Bernardo | 30 | Left-Back | Brazil |
| Grischa Prömel | 30 | Central Midfield | Germany |
| Dennis Geiger | 27 | Central Midfield | Germany |
| Ihlas Bebou | 31 | Centre-Forward | Togo |
| Andrej Kramarić | 34 | Centre-Forward | Croatia |
| Kevin Akpoguma | 30 | Centre-Back | Nigeria |
| Max Moerstedt | 19 | Centre-Forward | Germany |
| Muhammed Damar | 21 | Attacking Midfield | Germany |
| Fisnik Asllani | 23 | Centre-Forward | Kosovo |
| Tim Lemperle | 23 | Centre-Forward | Germany |