A boxing "superfight" of sorts between former UFC heavyweight champion
The New Jersey State Athletic Control Board has refused to sanction the headlining bout, according to Commissioner
Adrenaline III will go on as an all-MMA card, and several replacements for the main event are under consideration, including
Adrenaline promoter Monte Cox is currently searching for another venue to host the Sylvia-Mercer tilt, and indicated June as a possibility for the rescheduled event.
The bout with Mercer is to serve as Sylvia's professional boxing debut, having served an eight-year career in mixed martial arts that lead him to the pinnacle of the sport, twice serving as UFC heavyweight champion.
Mercer, 47, is 36-7-1 as a professional boxer, a gold medal winner in the 1988 Olympics and a former WBO heavyweight champion. Mercer dipped his toes into MMA waters in 2007 with an exhibition bout against
The fight was originally under consideration as an MMA bout, but in earlier comments to MMAWeekly.com, Cox decided a boxing match would be more competitive.