Mehhiko Liga de Expansión

On 20 February 2020, the presidents of the Liga MX clubs, the Ascenso MX clubs and Mexican Football Federation executives had a meeting, in which different topics were discussed with the intent of strengthening the two main leagues in the country.

On 26 June 2020, the league was officially presented, with the participation of 16 teams: Alebrijes de Oaxaca, Atlante, Atlético Morelia, Cancún, Celaya, Cimarrones de Sonora, Correcaminos UAT, Dorados de Sinaloa, Leones Negros UdeG, Mineros de Zacatecas, Tampico Madero, and Venados F.C. as Ascenso MX teams. Pumas Tabasco and Tapatío entered to the league as Liga MX affiliates. Finally, on 17 July 2020, Tepatitlán and Tlaxcala were invited as Liga Premier expansion teams.

On 22 May 2023, the Liga MX owners assembly approved a reform for the league that will be carried out in 2024. As a consequence of this reform, all the member teams of Liga MX must have a team in the Liga de Expansión MX, which will be made up of Under-23 footballers, who will compete together with the teams that were already part of the category, the new league will replace to Liga MX U–20 and will be called Expansión Sub–23.