Liga MX is considering suspending promotion and relegation starting in the 2019-20 season, with at least one second division club appalled by the prospect.
The Liga MX's development committee met on Tuesday and league president Enrique Bonilla admitted that a major change to the pro/rel system is being put forward, one that could reportedly be in place for four years.
"There are a lot of proposals on the table," Bonilla told reporters. "[Eliminating relegation] is one of them."
"There are others that are the opposite. We are debating all the possibilities, even the extreme ones."
At present, one team is relegated from Liga MX each May, based on each club's points-per-game ratio stretching back over the past three years -- or six seasons -- or less in the case of newly promoted clubs.
League rules state that the clubs promoted to Liga MX from the Ascenso MX must meet criteria regarding stadium capacity and economic solvency, meaning that around 10 of the 16 teams in Mexico's second division don't appear immediately fit to win promotion.
And Ascenso MX outfit Atletico San Luis -- owned by Atletico Madrid -- is not happy with the possibility.
Club president Alberto Marrero said Wednesday that if the suspension of relegation is approved by club owners in the scheduled March meeting, it would "kill the essence of football" and ruin the ambitions the 16 Ascenso MX teams have of making the first division
Marrero also stressed that Atletico Madrid had invested a lot in San Luis.
The Liga MX development committee also discussed a possible rule change regarding the number of foreign players each team is allowed, according to Bonilla.