By Jhonny Gonzalez

Former champion and Olympic gold medal winner Joel Casamayor has a big challenge ahead of himself on July 31 when he steps in the ring with Robert "The Ghost" Guerrero at the Mandalay Bay in Las Vegas. Casamayor said the fight with Guerrero will "not be easy" but when he is 100% focused on his training, he doesn't think "any fighter" can beat him. 

He wants to use a big win over Guerrero to get a rematch with the man fighting in the main event that night. Casamayor wants more than anything to avenge the 2008 TKO loss to Juan Manuel Marquez. In the eleventh round when the fight was stopped, two of the three judges had the fight scored a 95-95 draw. Casamayor was knocked down in that eleventh round and Marquez would later knock him down a second time before the referee stepped in to stop the fight.

Casamayor has never been happy about that loss and wants a rematch to make things right. He needs to be beat Guerrero first. Marquez will defend his WBO/WBA lightweight titles in a rematch with Juan Diaz in the main event.

"Whatever it takes to get Marquez in the ring. Everyone thinks it was a close fight. I think the fight was stopped unjustly," Casamayor said.