A five-foot-five-inch, 118-pound Japanese monster is ready to take over the Las Vegas Strip. WBA/IBF bantamweight world champion Naoya “Monster” Inoue, the three-weight world champion climbing the mythical pound-for-pound rankings, will make his Las Vegas debut Saturday, April 25 at the Mandalay Bay Events Center in a unification bout against WBO bantamweight world champion and fellow three-weight kingpin Johnriel Casimero. 

Inoue is coming off a memorable decision in the 2019 Ring Magazine and ESPN.com Fight of the Year against future Hall of Famer Nonito Donaire. This will be Inoue’s first bout under his long-term promotional agreement with Top Rank. 

Inoue-Casimero and the 10-round bantamweight tilt featuring WBO No. 1 contender Joshua “Don’t Blink” Greer Jr. and WBO No. 2 contender Jason Moloney will stream LIVE on ESPN+ beginning at 9 p.m. ET. In the final undercard bout on the ESPN+ stream, former super featherweight world champion Andrew Cancio will take on Tyler McCreary in a 10-rounder.

“The ‘Monster’ is coming to Las Vegas, and we couldn’t be more excited,” said Top Rank chairman Bob Arum. “He is a generational talent, a fierce competitor who is ready to take the United States by storm. Casimero is a seasoned champion, and Inoue knows he’s in for a firefight at Mandalay Bay.”  

Inoue (19-0, 16 KOs), 26, won his first title in only his sixth pro fight, knocking out Adrian Hernandez to win the WBC light flyweight crown. He is 14-0 with 12 knockouts in world title bouts, as he defended his light flyweight title once before moving up two weight classes to knock out long-time WBO junior bantamweight world champion Omar Narvaez in two rounds in December 2014.

He defended that belt seven times before setting his sights on the bantamweight division. His first three bantamweight title bouts lasted a total of four rounds, as he catapulted up pound-for-pound lists with stoppages over Emmanuel Rodriguez and Juan Carlos Payano. The Donaire bout — the final of the World Boxing Super Series tournament — was the ultimate gut check, as he suffered a broken orbital bone before prevailing in an instant classic.

“It is a tremendous honor and a dream come true to headline a card in Las Vegas against a great fighter like Casimero,” Inoue said. “It is my goal to be the undisputed bantamweight king, and I am coming to America to put on a great fight for the fans. I would like to thank Mr. Bob Arum and MGM Resorts for making my Las Vegas dream a reality. Now, the work begins, and I will kick off my 2020 schedule at Mandalay Bay in devastating fashion.”

 Casimero (29-4, 20 KOs), from Ormoc City, Philippines, is a newly minted bantamweight world champion who upset South African southpaw Zolani Tete via third-round TKO last November in Birmingham England. A world traveler, Casimero has won world title bouts in Mexico, England, China, Panama and the Philippines, in addition to interim world title bouts in Argentina, Nicaragua and the United States.

 

He is on a five-bout winning streak and is in his physical prime at 29 years old. The Inoue-Casimero winner will be one belt shy of completely unifying the division, as WBC world champion Nordine Oubaali holds the final piece of the championship puzzle. 

“This is my dream fight. I have traveled the world and fought in 10 countries. I’ve won world titles at 108, 112 and 118 pounds,” Casimero said. “But ever since I saw my hero and fellow countryman, Senator Manny Pacquiao, fight in Las Vegas, that has been my dream. To everyone who thinks I am the underdog on April 25, I will shock the world and show the fans who the real ‘Monster’ is in the ring.”