| Nr. | Name | Alter | |
|---|---|---|---|
| Torwart | |||
| 32 | Aitor Fraga | 22 | |
| 35 | Egoitz Arana | 23 | |
| 1 | Remiro | 30 | |
| 13 | Unai Marrero | 23 | |
| Abwehr | |||
| 21 | Nayef Aguerd | 29 | |
| 3 | Aihen Muñoz | 27 | |
| 2 | Álvaro Odriozola | 29 | |
| 19 | Jon Aramburu | 22 | |
| 6 | Aritz Elustondo | 31 | |
| 34 | Iñaki Rupérez | 22 | |
| 12 | Javi López | 23 | |
| 33 | Jon Balda | 23 | |
| 31 | Jon Martín | 19 | |
| 20 | Jon Pacheco | 24 | |
| 37 | Luken Beitia | 20 | |
| 18 | Hamari Traoré | 33 | |
| 5 | Zubeldia | 28 | |
| Mittelfeld | |||
| 22 | Beñat Turrientes | 23 | |
| 23 | Brais Méndez | 28 | |
| 4 | Martín Zubimendi | 26 | |
| 44 | Mikel Rodríguez | 23 | |
| 16 | Olasagasti | 24 | |
| 28 | Pablo Marín | 21 | |
| 24 | Luka Sučić | 22 | |
| 8 | Arsen Zakharyan | 21 | |
| Sturm | |||
| 41 | Alex Marchal | 17 | |
| 7 | Ander Barrenetxea | 23 | |
| 40 | Arkaitz Mariezkurrena | 20 | |
| 11 | Sheraldo Becker | 30 | |
| 43 | Dani Díaz | 18 | |
| 45 | Ekain Orobengoa | 20 | |
| 14 | Takefusa Kubo | 23 | |
| 30 | Mikel Goti | 22 | |
| 10 | Mikel Oyarzabal | 28 | |
| 9 | Orri Óskarsson | 20 | |
| 17 | Sergio Gómez | 24 | |
| Trainer | |||
| Imanol Alguacil | 53 | ||
| Co-Trainer | |||
| Ansotegi | 42 | ||
| Labaka | 44 | ||
| Torwart-Trainer | |||
| Jon Alemán | 40 | ||
