Cruz Azul, officially Club de Futbol Cruz Azul, is a professional football club based in Mexico City, Mexico. It competes in the Liga MX, the top division of Mexican football. Because "azul" means "blue" in Spanish, the club has traditionally worn a blue home kit.

The Liga MX, officially known as the Liga BBVA MX for sponsorship reasons, is the top professional football division in Mexico. Formerly known as the Primera División de México, it is contested by 18 clubs and is divided into two tournaments – "Apertura" and "Clausura"– which typically run from July to December and January to May. The champion of each tournament is decided via a playoff ("Liguilla") system. Since 2020, promotion and relegation has been suspended, which is to last until 2026.