2011–12 Mexican Primera División season
On May 16, 2011, the General Assembly of the Primera División announced a format change to begin with the 2011 Apertura.Instead of a two-legged, [clarification needed] single elimination tournament culminating in the finals, the eight teams in the next round would be placed into two groups of four.[1] However, on June 6, 2011, the Primera División Profesional's Operations Committee announced that the format change would only affect the elimination of groups in the First Stage, and that the playoffs would remain as they were.Therefore, the top eight teams at the end of the First Stage would advance to a two-legged elimination bracket.Necaxa was relegated to the Liga de Ascenso after accumulating the lowest coefficient during the immediate past three seasons, ending its one-year stay in the league.