Japan's Naoya Inoue announced Wednesday that he will attempt to become an undisputed world champion in a second weight division by fighting Marlon Tapales in December when all four superbantamweight belts will be at stake.
The boxer known as "Monster" last year became the first undisputed bantamweight world champion in half a century, before vacating his belts to move up to superbantamweight.
He beat American Stephen Fulton in his first fight at the new weight to claim the WBC and WBO titles in July and he will try to complete the set in Tokyo on Dec. 26 against the IBF and WBA champion Tapales, from the Philippines.