| Goalkeeper | |||||
|---|---|---|---|---|---|
| # | Name | Country | Birthday | ||
| 1 |  | Iván Crespo |  | Spain | 10.12.1984 |
| 13 |  | Oleaga | | Spain | 29.12.1996 |
| 25 |  | Romo | | Spain | 22.07.2002 |
| Defence | |||||
| # | Name | Country | Birthday | ||
| 6 |  | Ander Blanco | | Spain | 16.03.2000 |
 | Ander Lorente | | Spain | 28.01.2001 | |
| 19 |  | Andoni Ugarte | | Spain | 05.04.1995 |
| 4 |  | Aritz Huete | | Spain | 27.06.1996 |
| 2 |  | Asier Grande | | Spain | 22.05.2002 |
| 22 |  | Markel Etxeberria | | Spain | 15.02.1995 |
| 3 |  | Mateo | | Spain | 16.02.1997 |
| 5 |  | Daiki Niwa |  | Japan | 16.01.1986 |
| 29 |  | Sanclemente | | Spain | 29.03.2001 |
| Midfield | |||||
| # | Name | Country | Birthday | ||
| 7 |  | Aitor Villar | | Spain | 26.01.1991 |
| 16 |  | Anatz Elizondo | | Spain | 17.03.2000 |
| 28 |  | Asier del Río | | Spain | 01.02.2003 |
| 14 |  | Baqué | | Spain | 01.01.1997 |
| 15 |  | Gaizka Martínez | | Spain | 27.10.1996 |
| 8 |  | Garai | | Spain | 02.01.1997 |
| 18 |  | Kepa Uriarte | | Spain | 23.02.2002 |
| 21 |  | Urzelay | | Spain | 27.04.1995 |
| Forward | |||||
| # | Name | Country | Birthday | ||
| 17 |  | Aitor Aranzabe | | Spain | 28.06.1998 |
| 10 |  | Goti | | Spain | 03.05.1989 |
| 11 |  | Josu Juste | | Spain | 12.04.2000 |
| 20 |  | Leandro Martínez | | Spain | 07.07.1994 |
| 9 |  | Yurrebaso | | Spain | 25.01.1990 |
| Manager | |||||
| # | Name | Country | Birthday | ||
 | Aitor Calle | | Spain | 28.06.1976 | |
Sestao River