The Torneo Guardianes 2021 (stylized as Guard1anes) Liga MX final phase was played between 8 May 2021 to 30 May 2021. A total of 12 teams competed in the final phase to decide the champions of the Guardianes 2021 Liga MX season. For the second straight season, an additional qualifying round, the reclassification or repechaje, was employed, which expanded the number of playoff spots to 12. Both finalists qualified to the 2022 CONCACAF Champions League.