Japanese boxing star Naoya Inoue, known as "the Monster," retained his undisputed super bantamweight world title on Saturday with a unanimous decision victory over compatriot Junto Nakatani at a sold-out Tokyo Dome (Japan's iconic 55,000-capacity stadium), in a contest widely billed as the biggest boxing match in Japanese history. Judges scored the 12-round fight 116-112, 115-113, and 116-112 in Inoue's favour, extending his unbeaten world title record to 28 bouts and improving his overall record to 33 wins, including 27 knockouts. The all-Japanese clash carried extraordinary weight as both fighters entered undefeated at 32-0, with Nakatani — a three-weight world champion and top-10 pound-for-pound contender — moving up a division to challenge Inoue, making the outcome a statement of dominance for the 33-year-old champion on home soil.