Original: From 1987 until 1992 Guerrero wrestled in Empresa Mexicana de la Lucha Libre (EMLL) (now Consejo Mundial de Lucha Libre (CMLL), World Wrestling Association (WWA) in Mexico and World Championship Wrestling (WCW) in the United States.
Simplified: He started his wrestling career in 1987 in the Mexican Empresa Mexicana de Lucha Libre promotion.