Salvador Guerrero IV better known by his ring names Chavo Guerrero and Chavo Guerrero Jr., is an American professional wrestler and promoter. He has previously worked for World Championship Wrestling (WCW), WWE, Total Nonstop Action Wrestling (TNA), All Elite Wrestling (AEW), Lucha Underground (LU), and Nación Lucha Libre (NLL). As a singles wrestler, he is a former ECW World Champion in WWE, and a six-time Cruiserweight Champion between WWE and WCW. He also achieved success in tag team wrestling, being a five-time world tag team champion – winning the WWE Tag Team Championship twice with Eddie Guerrero as Los Guerreros, the WCW World Tag Team Championship once with Corporal Cajun as the Misfits in Action, and the TNA World Tag Team Championship twice with Hernandez. Between WCW, WWE, and TNA, Guerrero has held a dozen total championships and one world championship.