The first 13 Ascenso MX teams in the classification phase during the Apertura 2014 season will participate.
If two or more clubs are equal on points on completion of the group matches, the following criteria are applied to determine the rankings: All but one group is composed by four clubs, two from Liga MX and two from Ascenso MX.
Tepic won the round 3–0 on aggregate Tijuana originally won the first leg 3–1 but Tijuana was later awarded a 3–0 win after Necaxa only had 6 registered Ascenso MX players available for the leg instead of the mandatory 8.
If two or more teams are equal on points on completion of the group matches, the following criteria are applied to determine the rankings: The eight clubs that advance to this stage were ranked and seeded 1 to 8 based on performance in the group stage.
If a game ends in a draw, it will proceed directly to a penalty shoot-out.