1. FC Union Berlin
| Name | Age | Position | Nationality |
|---|---|---|---|
| Frederik Rønnow | 32 | Goalkeeper | Denmark |
| Alexander Schwolow | 32 | Goalkeeper | Germany |
| Carl Klaus | 31 | Goalkeeper | Germany |
| Yannic Stein | 20 | Goalkeeper | Germany |
| Leopold Querfeld | 21 | Defence | Austria |
| László Bénes | 27 | Midfield | Slovakia |
| Tim Skarke | 28 | Midfield | Germany |
| David Preu | 20 | Midfield | Germany |
| Ivan Prtajin | 28 | Offence | Croatia |
| Oluwaseun Ogbemudia | 18 | Centre-Back | Germany |
| Aljoscha Kemlein | 20 | Defensive Midfield | Germany |
| Andrej Ilic | 24 | Centre-Forward | Serbia |
| Tom Rothe | 20 | Left-Back | Germany |
| Benedict Hollerbach | 23 | Centre-Forward | Germany |
| Yorbe Vertessen | 24 | Centre-Forward | Belgium |
| Jeong Wooyeong | 25 | Attacking Midfield | South Korea |
| András Schafer | 25 | Central Midfield | Hungary |
| Danilho Doekhi | 26 | Centre-Back | Netherlands |
| Diogo Leite | 25 | Centre-Back | Portugal |
| Josip Juranović | 29 | Right-Back | Croatia |
| Robert Skov | 28 | Left Midfield | Denmark |
| Janik Haberer | 30 | Central Midfield | Germany |
| Lucas Tousart | 27 | Defensive Midfield | France |
| Jérôme Roussillon | 32 | Left-Back | Guadeloupe |
| Christopher Trimmel | 37 | Right-Back | Austria |
| Rani Khedira | 30 | Defensive Midfield | Germany |
| Jordan Siebatcheu | 28 | Centre-Forward | USA |
| Kevin Vogt | 33 | Centre-Back | Germany |
| Kevin Volland | 32 | Centre-Forward | Germany |