Following the breakup of the prior Los Guerreros, Chavo Guerrero, Jr. was soon joined by his father Chavo Guerrero, Sr. who was later to be known as "Chavo Classic", and was primarily his son's manager throughout the run.
Following Chavo's loss to Eddie at the Royal Rumble, Chavo was jealous of Rey Mysterio in the storyline because Mysterio had sung the theme song of the upcoming pay-per-view event, No Way Out, and because Mysterio was Cruiserweight Champion.