World Extreme Cagefighting has announced the full fight card for its May 12th show at The Joint in the Hard Rock Hotel in Las Vegas, Nev. It was previously announced that the headline bout would be WEC Lightweight Champion “Razor” Rob McCullough making his first title defense against UFC veteran and WEC mainstay Rich “Cleat” Crunkilton, but a knee injury has forced McCullough to pullout of the fight. Crunkilton will now face UFC veteran Jamie Varner in what is being billed as a number one contender’s match for the WEC Lightweight Championship. The new main event for the May 12th card will be WEC Light Heavyweight Champion Doug “The Rhino” Marshall defending his title for the first time against XFO Light Heavyweight Champion Justin McElfresh. Marshall is coming off of a knockout victory over Loudine Sincaid at WEC 23. McElfresh is coming off a submission victory over Ron Fields at XFO 13: Operation Breakdown. Making his WEC debut, UFC veteran Jason “Mayhem” Miller takes on Armory fighter Hiromitsu Miura. Miller is coming off a stoppage victory over Hector Urbina at Icon Sport: Epic. Miura was scheduled to fight Joe Riggs at WEC 26, but the fight was scrapped the day of when Riggs pulled out due to injury.