 Luis López | GK |  Spain | 1 | 25 | €370K | |
 Jonmi Magunagoitia | GK | Spain | 13 | 26 | €960K | |
 Sergio Cubero | RB, RWB, RM | Spain | 2 | 27 | €380K | |
 Álvaro Rodríguez | RB | Spain | 22 | 32 | ||
 Unai ElgezabalCalf injury - Late November 2026 | CB | Spain | 4 | 33 | €230K | |
 Peru Nolaskoain | CB | Spain | 5 | 28 | €470K | |
 Jair Amador | CB |  Portugal | 15 | 37 | €190K | |
 Markel Arana | CB | Spain | 18 | 24 | €280K | |
 Imanol García de Albéniz | LB | Spain | 3 | 26 | €550K | |
 Anaitz Arbilla | LB, CB | Spain | 23 | 39 | €200K | |
 Juan BernatMuscle injury - Doubtful | LB | Spain | 24 | 33 | €210K | |
 Sergio Álvarez | DM, CM | Spain | 6 | 34 | €320K | |
 Mada | DM, AM, RW | Spain | 8 | 24 | ||
 Lander Olaetxea | DM, CM | Spain | 14 | 33 | €190K | |
 Aleix Garrido | DM, CM | Spain | 30 | 22 | €1.2M | |
 Lucas Núñez | Midfielder | Spain | 28 | 20 | ||
 Pejiño | LM, RM, RW | Spain | 17 | 30 | €460K | |
 Jon Magunazelaia | AM, RW, ST | Spain | 11 | 25 | €930K | |
 Iván Gil | AM | Spain | 21 | 26 | €700K | |
 Adu Ares | RW, LW, ST, RM, LM | Spain | 7 | 25 | ||
 Jon Guruzeta | LW, AM, ST | Spain | 10 | 26 | €460K | |
 Eric Pérez | LW | Spain | 19 | 25 | €290K | |
 Elijah GiftMuscle injury - Doubtful | LW | Spain | 27 | 20 | ||
 Jon Bautista | ST | Spain | 9 | 31 | €1M | |
 Javi Martón | ST, AM | Spain | 20 | 27 | €1.2M |