Liga MX

Liga MX, officially named Liga BBVA MX for sponsorship reasons, is a professional association football league in Mexico and the highest level of the Mexican football league system. Formerly named Liga Mayor (1943–1949) and Primera División de México (1949–2012). The league has 18 participating clubs. The season is divided into two short tournaments, according to the FIFA world football calendar: Apertura (from July to December) and Clausura (from January to May). The champions of each tournament are decided by a final knockout phase, commonly known as liguilla. Since 2020, promotion and relegation has been suspended.

The inaugural edition as a professional and national league was the 1943–44 season, with Asturias as the first champions in history. In all, 115 editions of the league have been held.

Liga MX currently ranks first in CONCACAF's league ranking index. According to the IFFHS, it was ranked as the 10th strongest league in the first decade of the 21st century. According to CONCACAF, the league with an average attendance of 25,557 during the 2014–15 season, draws the largest crowds on average of any football league in the Americas and the third largest crowds of any professional sports league in North America.

América is the most successful club with sixteen titles, followed by Guadalajara and Toluca with twelve titles each, Cruz Azul with ten titles, Tigres UANL and León with eight titles each. In all, twenty-four clubs have won the league at least once.