One of the featured matches was between John Cena and Sabu in an Extreme lumberjack match, a standard match with the exception that the ring is surrounded by a group of wrestlers not directly involved in it and competed under hardcore rules. On the television debut of "ECW on Sci Fi" on June 13, a brawl broke out between Rob Van Dam and Edge. Edge, who tried to leave through the "ECW" crowd, was attacked by Cena, because he caused Cena to lose the WWE Championship at ECW's One Night Stand, and Cena wanted revenge against Edge. Following the attack, Cena went to ringside where he knocked ECW Representative Paul Heyman unconscious, after Heyman awarded the win to Van Dam at One Night Stand. Following the attack, Heyman announced that all ECW superstars would be at "Raw" the next week. The next week on "Raw", Heyman appeared alongside ECW superstar, Balls Mahoney, who was booked to wrestle Cena in a match. The match was won by Cena after he made Mahoney submit. After the match, Cena was attacked by ECW wrestler, Sabu, who, in the premiere of "ECW on Sci-Fi" won a 10-man Extreme Battle Royal, (a multi-competitor match type in which wrestlers are eliminated until only one is left and declared winner) where the winner would face Cena at Vengeance in a match. Sabu beat up Cena and performed a leg drop on him, diving onto Cena and putting him through the "Raw" announcers' table. The following night on an episode of "ECW on Sci-Fi", Cena went to the "ECW" locker room, where he challenged Sabu to an Extreme lumberjack match, which Sabu accepted.