Spain > Copa del Rey >
Squad
| No. | Player | Born | P |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|---|---|
| 8 | Nayef Aguerd |  1996 | D | - | - | - | - | - | - |
| 16 | Jon Ander Olasagasti | 2000 | M | 1 | - | 74 | - | - | - |
| 27 | Jon Aramburu | 2002 | D | - | - | - | - | - | - |
| 35 | Egoitz Arana | 2002 | G | - | - | - | - | - | - |
| 7 | Ander Barrenetxea | 2001 | F | - | 1 | 58 | 2 | - | - |
| 11 | Sheraldo Becker | 1995 | F | 1 | - | 62 | - | - | - |
| 6 | Aritz Elustondo | 1994 | D | - | - | - | - | - | - |
| 32 | Aitor Fraga | 2003 | G | - | - | - | - | - | - |
| 17 | Sergio Gómez | 2000 | D | - | 1 | 58 | 1 | - | - |
| 15 | Urko González | 2001 | D | 1 | - | 91 | - | - | - |
| 14 | Takefusa Kubo | 2001 | F | - | - | - | - | - | - |
| 12 | Javi López | 2002 | D | 1 | - | 74 | - | - | - |
| 25 | Jon Magunazelaia | 2001 | M | 1 | - | 62 | 1 | - | - |
| 40 | Arkaitz Mariezkurrena | 2006 | F | - | - | - | - | - | - |
| 28 | Pablo Marín | 2003 | M | 1 | - | 120 | - | - | - |
| 13 | Unai Marrero | 2001 | G | 1 | - | 120 | - | - | - |
| 31 | Jon Martín | 2006 | D | 1 | - | 120 | - | - | - |
| 23 | Brais Méndez | 1997 | F | - | 1 | 46 | 1 | - | - |
| 3 | Aihen Muñoz | 1997 | D | - | - | - | - | - | - |
| 2 | Álvaro Odriozola | 1995 | D | 1 | - | 106 | - | - | - |
| 9 | Orri Óskarsson | 2004 | F | - | - | - | - | - | - |
| 10 | Mikel Oyarzabal | 1997 | F | - | 1 | 46 | - | - | - |
| 20 | Jon Pacheco | 2001 | D | 1 | - | 120 | - | - | - |
| 1 | Álex Remiro | 1995 | G | - | - | - | - | - | - |
| 41 | Iñaki Rupérez | 2003 | D | - | - | - | - | - | - |
| 19 | Umar Sadiq | 1997 | F | 1 | - | 120 | - | - | - |
| 24 | Luka Sučić | 2002 | M | - | 1 | 14 | - | - | - |
| 18 | Hamari Traoré | 1992 | D | - | - | - | - | - | - |
| 22 | Beñat Turrientes | 2002 | M | - | - | - | - | - | - |
| 21 | Arsen Zakharyan | 2003 | M | - | - | - | - | - | - |
| 5 | Igor Zubeldía | 1997 | M | - | - | - | - | - | - |
| 4 | Martín Zubimendi | 1999 | M | - | - | - | - | - | - |