| Name▲ | Position | Age | |
|---|---|---|---|
 | A. Hierro | Attacker | 20 |
AB | Adama Boiro | Defender | 23 |
 | Adrian Perez | Midfielder | 18 |
 | Aimar Duñabeitia | Defender | 22 |
AP | Aitor Paredes | Defender | 25 |
AR | Alejandro Rego | Defender | 22 |
ÁB | Álex Berenguer | Attacker | 30 |
ÁP | Álex Padilla | Goalkeeper | 22 |
ÁD | Álvaro Djaló | Attacker | 26 |
 | Aymeric Laporte | Defender | 31 |
BG | Beñat Gerenabarrena | Midfielder | — |
BP | Beñat Prados | Midfielder | 24 |
CI | Christian Imga | Attacker | — |
DV | Dani Vivian | Defender | 26 |
 | E. Garcia | Attacker | 21 |
 | E. Gift | Midfielder | 19 |
GG | Gorka Guruzeta | Attacker | 29 |
 | Gorosabel | Defender | 29 |
HR | Hugo Rincón | Defender | 22 |
IW | I. Williams | Attacker | 31 |
 | Ibon Sánchez | Midfielder | 21 |
 | Iker Monreal | Defender | 20 |
JL | J. Louis-Jean | Defender | — |
JA | Jesús Areso | Defender | 26 |
 | Jon de Luis | Defender | 22 |
 | Lekue | Defender | 32 |
MS | Maroan Sannadi | Attacker | 24 |
MJ | Mikel Jauregizar | Midfielder | 22 |
 | Mikel Santos | Goalkeeper | 21 |
 | Mikel Vesga | Midfielder | 32 |
NS | Nico Serrano | Attacker | 22 |
 | Nico Williams | Attacker | 23 |
OS | Oihan Sancet | Midfielder | 25 |
PC | Peio Canales | Midfielder | 20 |
RN | Robert Navarro | Midfielder | 23 |
RD | Ruíz de Galarreta | Midfielder | 32 |
 | S. Sanchez | Midfielder | 18 |
 | Unai Eguíluz | Defender | 23 |
 | Unai Gómez | Midfielder | 22 |
US | Unai Simón | Goalkeeper | 28 |
 | Urko Izeta | Attacker | 26 |
Y | Yeray | Defender | 30 |
Y | Yuri | Defender | 35 |