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 . After the match , Cena was attacked by ECW superstar 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 one is left and declared winner , where the winner would face Cena at Vengeance in a singles match .