Jaime Munguia vs. Gary O’Sullivan set for Jan. 11 in San Antonio

Jaime Munguia will move up a division to face middleweight Gary O’Sullivan in a 12-round bout at the Alamodome in San Antonio on Jan. 11.

After five successful defenses of his junior middleweight title, Mexican slugger Jaime Munguia is moving up a division.

The 23-year-old makes his middleweight debut against Irish veteran Gary “Spike” O’Sullivan in a 12-rounder on Jan. 11 at the Alamodome in San Antonio on DAZN, Golden Boy Promotions has announced.

“I feel very happy to be starting the year 2020 with a great fight at a great place like San Antonio, Texas,” Munguia said.”I have fought in Houston, Texas before, where the people there treated me very well. I think that San Antonio won’t be any different.”

Munguia burst onto the scene last year when he appeared from nowhere to poleaxe Sadam Ali to win the WBO junior middleweight belt. He went on to defend it successfully against Liam Smith, Brandon Cook, Takeshi Inoue, Dennis Hogan and most recently Patrick Allotey. With each subsequent fight, however, Munguia, who sports a hulkish build, found it increasingly onerous to make the 154-pound limit.

“We’re going to deliver a great fight against a tough fighter in Gary O’Sullivan,” Munguia said. “He’s great and he’s strong, but we’re going to come very well prepared. We plan to do an excellent job and make it very clear who is the best in the ring.”

Munguia (34-0, 27 knockouts) joins a packed middleweight crew, which includes stablemate and countryman Canelo Alvarez (who may or may not return to that division after moving up to light heavyweight recently), as well as titleholders Gennadiy Golovkin, Jermall Charlo, and Demetrius Andrade.

The 35-year-old O’Sullivan ( 30-3, 21 KOs) reeled off consecutive wins since getting starched by David Lemieux last year. O’Sullivan made a name for himself when he wiped out once highly regarded prospect Antoine Douglas back in 2017.

“For me it’s a dream come true to fight the undefeated champion of the world and the No. 1-ranked fighter in the world,” O’Sullivan said. “It makes it even better that he’s Mexican. I grew up watching the great Mexican champions, and to get the opportunity to fight Jaime is an honor.”

The undercard bouts have not been announced.