 Several championship teams have lost the championship in their first defense , while the teams of Sagrado , La Sombra , Volador Jr . , and El Felino , Safari , Volador Jr. both are credited with six successful title defenses before losing the championship , the most of any of the 39 championship teams . In 1991 the Commission allowed El Ninja to replace the injured Leono during a championship defense , helping Los Thundercats retain the title against the team of Rocky Santana , El Gallego and Romano Garcia . 
