One of the best referees in the sport, Kenny Bayless will be the third man in the ring when Manny Pacquiao faces Juan Manuel Marquez for a fourth time on December 8th at the MGM Grand in Las Vegas. HBO Pay-Per-View will carry the event. The judges for the main event have been selected as well, with three experienced scorers - Steve Weisfeld, John Keane and Adalaide Byrd.