By Rafael Soto

The world flyweight champion of the World Boxing Association (WBA), Mexico's Hernan "Tyson" Marquez, continues to prepare for his upcoming unification against WBO king Brian Viloria, now scheduled for November 10th. Marquez has already arrived in Las Vegas. Marquez will be with his new trainer, Robert Garcia, who will work the corner of Argentina's Marcos "El Chino" Maidana at the MGM in Las Vegas on Saturday night. He faces Mexico's Jesus Soto Karass.

Marquez (34-2, 26 KOs) was invited by his compatriot and friend, WBC middleweight champ Julio Cesar Chavez Jr., to watch Saturday's defense against Sergio Martinez at the Thomas and Mack Center.

"I'm very excited to be supporting my friend Julio Cesar Chavez Jr. in his fight against Martinez on Saturday. I have no doubt that Chavez Jr. will be focused and that he'll defeat Martinez. It will not be an easy fight, but Chavez has the power and strength to defeat and even knock Martinez out," said Marquez.