Julio Cesar Martinez will defend his WBC World Flyweight title against Samuel Carmona at Desert Diamond Arena in Glendale next month.

The bout takes place Saturday, Dec. 3 at the arena located at 9400 W. Maryland Ave., in the Westgate Entertainment District.

It will be the co-main event bout as Juan Francisco Estrada and Roman “Chocolatito” Gonzalez meet in a trilogy clash for the WBC and Ring Magazine Super-Flyweight titles.

Martinez (18-2, 14 KOs) puts his title on the line for the fifth time since landing the vacant belt in December 2019, and the fiery Mexican is back in action for the first time since challenging one half of the headline fight, Gonzalez, for the WBC Diamond Super-Flyweight title in March.

 “El Rey” was set to face long-running rival McWilliams Arroyo in a rematch in Glendale, but as neck and back issues have ruled the Puerto Rican out, the door is opened for Carmona (8-0, 4 KOs) to land his first world title shot. The unbeaten Spaniard, who represented his country in the 2016 Olympic Games, has cruised to 8-0 in the paid ranks since turning pro in September 2019 and landed the WBA International title at 112 pounds in just his fourth pro fight.

“I’m excited to be getting back in the ring and defending my WBC belt again,” Martinez shared in a statement. “It’s unfortunate the Arroyo rematch is not happening, but it’s a huge chance for Samuel and he’s young and hungry, so you know he will bring everything on the night.

Also announced for the card is another flyweight showdown as Mexico’s Joselito Velazquez and Nicaraguan Cristofer Rosales clash over 10 rounds. Velazquez (15-0-1, 10 KOs) steps back through the ropes for the first time since landing a sixth round stoppage win over Jose Soto in Las Vegas.