| 12/03/21 | Defensa y Justicia II | - | Newell's Old Boys II | 2:1 | |||||
| 24/08/21 | Defensa y Justicia II | - | Newell's Old Boys II | 1:1 |
| 12/03/21 | Defensa y Justicia II | - | Newell's Old Boys II | 2:1 | |||||
| 24/08/21 | Defensa y Justicia II | - | Newell's Old Boys II | 1:1 |
| Mariano Blas Pieres | |
| Born: | 08.01.2000 |
| Place of birth: |
Rafael Calzada, 
Argentina |
| Nationality: |
Argentina
|
| Height: | 180 cm |
| Weight: | 78 kg |
| Position(s): | Centre Back |
| Foot: | right |