[1] On the March 12 episode of WCW Thunder, he defeated his nephew Chavo in a match and forced him to become his "slave".

[8] Chavo's treatment at the hands of Eddie drove him "crazy" and he adopted the gimmick of a psycho fixated with a hobby horse he dubbed "Pepé.

[10] Another result of his insanity, was his inability to join Eddie's Latino World Order stable, which was a take-off of the nWo.

brand in July and Benoit moved onto a feud with Kurt Angle while Eddie formed a villainous tag team with Chavo.

They teamed up for the first time on the August 15 episode of SmackDown!, where they lost to Edge and Rey Mysterio by disqualification.

[11] Shortly after, they adopted the name "Los Guerreros" when the two were entered into a tournament to crown the first-ever WWE Tag Team Champions for SmackDown!.

Los Guerreros defeated Mark Henry and Rikishi to make it to the semi-finals where they lost to the eventual winners Kurt Angle and Chris Benoit.

At Survivor Series, Los Guerreros defeated Benoit and Angle and Edge and Mysterio in a triple threat elimination match to win their first WWE Tag Team Championship.

[24] However, Eddie turned into a fan favorite by beginning a feud with John Cena on the August 28 episode of SmackDown!.

[30] Los Guerreros would lose the WWE Tag Team Championship to the Basham Brothers on the October 23 episode of SmackDown!.

[32] On the November 6 episode of SmackDown!, Eddie defeated the Basham Brothers in a handicap match to earn a rematch for the WWE Tag Team Championship for the following week's SmackDown!, where the Basham Brothers tricked Eddie into leaving by telling him the news that his wife's sister had a car accident and Chavo was forced to face them in a handicap match, which Chavo lost.

[36] The following week, on SmackDown!, Chavo was attacked by the World's Greatest Tag Team after Eddie defeated Charlie Haas.

[38] Eddie and Chavo finally began having problems with each other after losing a match to World's Greatest Tag Team on the January 1, 2004 episode of SmackDown!.

[45] On the February 19 episode of SmackDown!, Chavo challenged Eddie to a match for the WWE Championship, which featured Kurt Angle as the special guest referee.