| 5. Round | 06/02/2021 | Atlas Guadalajara [U20] | - | Santos Laguna [U20] | 0:0 | ||||
| 6. Round | 14/02/2021 | Santos Laguna [U20] | - | CF Monterrey [U20] | 1:2 | ||||
| 7. Round | 18/02/2021 | Atlético San Luis [U20] | - | Santos Laguna [U20] | 0:4 | ||||
| 9. Round | 04/03/2021 | Pumas UNAM [U20] | - | Santos Laguna [U20] | 0:0 | ||||
| 10. Round | 07/03/2021 | Santos Laguna [U20] | - | Club Necaxa [U20] | 1:1 | ||||
| 11. Round | 13/03/2021 | Club Tijuana [U20] | - | Santos Laguna [U20] | 3:1 | ||||
| 12. Round | 21/03/2021 | Santos Laguna [U20] | - | Club León [U20] | 3:0 | ||||
| 1. Round | 26/03/2021 | Santos Laguna [U20] | - | Cruz Azul [U20] | 3:1 | ||||
| 13. Round | 04/04/2021 | Deportivo Guadalajara [U20] | - | Santos Laguna [U20] | 5:2 |  |
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| 14. Round | 11/04/2021 | Gallos Blancos [U20] | - | Santos Laguna [U20] | 1:0 | ||||
| 15. Round | 18/04/2021 | Santos Laguna [U20] | - | Deportivo Toluca [U20] | 2:2 | ||||
| 16. Round | 26/04/2021 | CF Pachuca [U20] | - | Santos Laguna [U20] | 3:1 | ||||
| 17. Round | 02/05/2021 | Santos Laguna [U20] | - | Puebla FC [U20] | 2:3 |
Mexico