Athletic Club
| Name | Age | Position | Nationality |
|---|---|---|---|
| Unai Simón | 28 | Goalkeeper | Spain |
| Álex Padilla | 22 | Goalkeeper | Spain |
| Mikel Santos | 21 | Goalkeeper | Spain |
| Unai Eguíluz | 23 | Defence | Spain |
| Ander Izagirre | 22 | Defence | Spain |
| Jon de Luis | 22 | Defence | Spain |
| Iker Monreal | 20 | Defence | Spain |
| Alejandro Rego | 22 | Midfield | Spain |
| Ibon Sánchez | 21 | Midfield | Spain |
| Selton Sánchez | 18 | Midfield | Spain |
| Urko Izeta | 26 | Offence | Spain |
| Endika Buján | 23 | Offence | Spain |
| Adrián Pérez | 19 | Offence | Spain |
| Asier Hierro | 20 | Offence | Spain |
| Éder García | 22 | Offence | Spain |
| Benat Prados | 24 | Central Midfield | Spain |
| Nico Williams | 23 | Left Winger | Spain |
| Aitor Paredes Casamichana | 25 | Centre-Back | Spain |
| Jesús Areso | 26 | Right-Back | Spain |
| Oihan Sancet | 25 | Attacking Midfield | Spain |
| Roberto Navarro | 23 | Attacking Midfield | Spain |
| Mikel Vesga | 32 | Defensive Midfield | Spain |
| Gorka Guruzeta | 29 | Centre-Forward | Spain |
| Andoni Gorosabel | 29 | Right-Back | Spain |
| Iñaki Williams | 31 | Right Winger | Ghana |
| Daniel Vivian | 26 | Centre-Back | Spain |
| Iñigo Lekue | 32 | Right-Back | Spain |
| Yeray Álvarez | 31 | Centre-Back | Spain |
| Ruiz de Galarreta | 32 | Central Midfield | Spain |
| Yuri Berchiche | 35 | Left-Back | Spain |
| Aymeric Laporte | 31 | Centre-Back | Spain |
| Álex Berenguer | 30 | Left Winger | Spain |
| Sannadi | 25 | Centre-Forward | Spain |
| Adama Boiro | 23 | Left-Back | Spain |
| Mikel Jauregizar | 22 | Central Midfield | Spain |
| Unai Gomez | 22 | Attacking Midfield | Spain |
| Nico Serrano | 22 | Left Winger | Spain |