[1][2] This tournament will feature all the clubs from the Liga MX, excluding those that will participate in the 2012-13 CONCACAF Champions League (Santos, Tigres, Monterrey and Guadalajara), and the 3 that will participate in the Copa Libertadores 2013 (León, Tijuana and Toluca) and the best 13 teams from the Ascenso MX, excluding Leones Negros and Pumas Morelos.
[3] If two or more clubs are equal on points on completion of the group matches, the following criteria are applied to determine the rankings: Every group is composed by four clubs, two from Liga MX and two from Ascenso MX.
An extra point is awarded for every round won; a round is won by aggregated score, and if it is a tie, the extra point will be awarded to the team with higher number of goals scored away.
[4] 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 will be ranked and seeded 1 to 8.
If the game ends in a tie, there will proceed to penalty shootouts directly.