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William Muñoz González, known as Rush, is a professional wrestler from Mexico. He is best known for his time in the Consejo Mundial de Lucha Libre (CMLL) promotion, where he is a former CMLL World Heavyweight Champion and CMLL World Tag Team Champion. González is also known for his work in the United States, where he has wrestled for Ring of Honor (ROH) and Total Nonstop Action Wrestling (TNA).