[2] This tournament will feature the 14 clubs from Liga MX which will not participate in the 2019 CONCACAF Champions League (Monterrey, Santos Laguna, Toluca, and UANL).
[3] The tournament also featured the top 13 Ascenso MX teams of the Apertura 2018 classification table.
[32] Pot 1 also contained the top four Ascenso MX teams in the Apertura 2018 classification table.
[32] 'Pot 3 contains the next five best Liga MX clubs in the Apertura 2018 classification table not participating in the 2019 CONCACAF Champions League.
Pot 3 also contains the Ascenso MX clubs who ended 10–13 in the Apertura 2018 classification table.