Japanese boxer Naoya Inoue on Tuesday restated his readiness to move up to the super bantamweight division after stopping Britain's Paul Butler in the 11th round to become the world's undisputed bantamweight champion with all four major belts.Inoue, nicknamed "Monster" for his domination in the ring, will join the weight class, in which Stephen Fulton of the United States holds the WBC and WBO belts, and Murodjon Akhmadaliev of Uzbekistan has the WBA and IBF titles.Related coverage:Japanese boxer Inoue becomes undisputed bantamweight champion with KO"Super bantamweight is packed with strong…READ FULL ARTICLE