wrestle each other with their mask on the line. His partner in the match was Último Guerrero, facing off against the teams of Atlantis and Olímpico, Místico and El Oriental, Histeria and La Sombra, Volado Jr. and El Alebrije. Averno and Último Guerrero was the third team to escape the match. In mid 2010 CMLL abandoned the NWA World Middleweight Championship after repeated complaints from the National Wrestling Alliance, instead they created the NWA World Historic Middleweight Championship and made Averno the first champion. Averno was one of 14 men putting their masks on the line in a Lucha de Apuestas steel cage match, the main event of the CMLL 77th Anniversary Show. Averno was the first man to leave the steel cage with all three members of Los Hijos del Averno quickly leaving the cage, keeping their masks safe. In April 2011, Averno began feuding with La Máscara, building a storyline that led to a Mask vs. Mask Lucha de Apuesta on June 17. The match announcement came on the heels of a report that Averno had signed a contract with WWE, supposedly following long time in-ring rival Místico who had already signed with WWE. On June 17 at CMLL's Juicio Final ("Final Judgement") show, Averno was defeated by La Máscara two falls to one and thus was forced to unmask. Upon unmasking, Averno revealed that his real name was Renato Ruíz Cortes, that he was 34 years old originally from Mexico City and had been wrestling for 16 years. Afterward, Ruíz and La Máscara continued their rivalry, building up to another singles match on July 4, where Ruíz successfully defended the NWA World Historic Middleweight Championship. Despite rumors Averno never began working for WWE, opting at the time to stay with CMLL. On July 15, Los Hijos del Averno defeated La Generación Dorada (La Máscara, Máscara Dorada and La Sombra) to win the CMLL World Trios Championship. On September 9, 2011 Averno entered CMLL's annual tournament of champions, the Universal Championship tournament. After defeating CMLL World Super Lightweight Champion Virus and old rival, Mexican National Light Heavyweight Champion La Máscara, in his first two matches, Averno defeated CMLL World Tag Team Champion Último Guerrero in the semi-finals. On September 16, Averno was defeated in the Universal Championship finals by La Sombra. On November 22, Averno lost the NWA World Historic Middleweight Championship to La Máscara. On February 19,