| 2 RFEF 2 | 30/09/23 | Athletic Club B | - | CD Valle de Egüés | 3:1 |
| 2 RFEF 2 | 30/09/23 | Athletic Club B | - | CD Valle de Egüés | 3:1 |
| Carlos Mattheus Caballero | |
| Born: | 25.10.2001 |
| Place of birth: |
Bilbao, 
Spain |
| Nationality: |
Spain
|
| Height: | 185 cm |
| Position(s): | Offensive Midfielder Left Midfielder |
| Foot: | right |