Naoya Inoue gave another boxing masterclass to beat countryman Junto Nakatani by unanimous decision and stay unbeaten in front of 55,000 fans at a sold-out Tokyo Dome on Saturday.

Inoue retained his undisputed super bantamweight titles and handed Nakatani the first loss of his career.

The bout had been billed as one of the biggest in Japanese boxing history, bringing together two unbeaten fighters with identical 32-0 records at the famous venue.