| Nº | Jogador | Dt nasc | P |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Álex Remiro |  1995 | G | 33 | - | 3082 | - | 1 | - |
| 13 | Unai Marrero | 2001 | G | - | - | - | - | - | - |
| 32 | Aitor Fraga | 2003 | G | - | - | - | - | - | - |
| 2 | Jon Aramburu | 2002 | D | 31 | 3 | 2603 | 1 | 9 | - |
| 3 | Aihen Muñoz | 1997 | D | 19 | 11 | 830 | - | 1 | - |
| 6 | Aritz Elustondo | 1994 | D | 13 | 7 | 566 | - | - | - |
| 16 | Duje Ćaleta-Car | 1996 | D | 24 | 3 | 1961 | 1 | 5 | 1 |
| 17 | Sergio Gómez | 2000 | D | 30 | 4 | 2382 | - | 3 | 1 |
| 20 | Álvaro Odriozola | 1995 | D | 5 | 3 | 218 | 1 | - | - |
| 31 | Jon Martín | 2006 | D | 21 | - | 1969 | 1 | 5 | - |
| 38 | Luken Beitia | 2004 | D | 1 | 1 | 15 | - | - | - |
| 4 | Jon Gorrotxategi | 2002 | M | 27 | 4 | 2097 | 1 | 6 | - |
| 5 | Igor Zubeldía | 1997 | M | 22 | 1 | 1954 | - | 8 | - |
| 8 | Beñat Turrientes | 2002 | M | 23 | 10 | 1133 | - | 5 | - |
| 12 | Yangel Herrera | 1998 | M | 9 | 5 | 344 | - | 1 | - |
| 18 | Carlos Soler | 1997 | M | 28 | 6 | 2017 | 4 | 3 | 1 |
| 21 | Arsen Zakharyan | 2003 | M | 16 | 14 | 424 | - | 1 | - |
| 24 | Luka Sučić | 2002 | M | 17 | 9 | 798 | 3 | 1 | - |
| 28 | Pablo Marín | 2003 | M | 29 | 16 | 1298 | - | 2 | - |
| 46 | Ibai Aguirre | 2007 | M | 1 | 1 | 5 | - | - | - |
| 7 | Ander Barrenetxea | 2001 | A | 27 | 8 | 1612 | 3 | 3 | - |
| 9 | Orri Óskarsson | 2004 | A | 16 | 11 | 571 | 6 | 4 | - |
| 10 | Mikel Oyarzabal | 1997 | A | 29 | 2 | 2473 | 14 | 2 | - |
| 11 | Gonçalo Guedes | 1996 | A | 31 | 9 | 1864 | 8 | 3 | - |
| 14 | Takefusa Kubo | 2001 | A | 21 | 6 | 1408 | 2 | 2 | - |
| 19 | Jon Karrikaburu | 2002 | A | 7 | 7 | 148 | - | - | - |
| 22 | Wesley Gassova Ribeiro | 2005 | A | 4 | 3 | 89 | - | - | - |
| 23 | Brais Méndez | 1997 | A | 28 | 8 | 1636 | 6 | 4 | 1 |
| 26 | Dani Diaz | 2006 | A | 1 | 1 | 20 | - | - | - |
