Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The CMLL World Middleweight Championship is a professional wrestling championship promoted by the Mexican wrestling promotion Consejo Mundial de Lucha Libre (CMLL). While weight classes are regularly ignored in wrestling promotions in the United States, with most emphasis placed on "heavyweights", more emphasis is placed on weight classes in Mexican companies who still maintain many weight classes. The official definition of a Middleweight in Mexico is a person under 87 kg (190 lb), but is not strictly adhered to these days.