On the July 25 episode of "SmackDown!", Rey Mysterio made his WWE debut by defeating Chavo Guerrero. On the August 8 episode of "SmackDown!", the team of Mysterio, Edge and John Cena defeated Chris Benoit, Eddie Guerrero and Kurt Angle when Mysterio pinned Angle. On the August 15 episode of "SmackDown!", Angle insulted Mysterio during a backstage interview and Mysterio confronted him and challenged him to a match at SummerSlam, which Angle accepted. Later that night, Mysterio attacked Angle after his match against Mark Henry and delivered a "619" to Angle. On the August 22 episode of "SmackDown!", Mysterio cost Angle a match against Billy Kidman by attacking Angle.