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Salvador Guerrero IV, better known as Chavo Guerrero Jr., is a Mexican-American professional wrestler and the son of Chavo Guerrero Sr. He is a third-generation wrestler, following in the footsteps of his grandfather Gory Guerrero and his father Chavo Guerrero Sr. Guerrero Jr. has won numerous championships throughout his career, including the WWE Cruiserweight Championship and the ECW World Championship.