TOKYO — Japan's unbeaten Naoya Inoue said he was mentally "exhausted" after knocking out a goading Kim Ye-joon to retain his undisputed world super-bantamweight titles in Tokyo on Friday night.
Inoue is expected to take his prodigious skills to Las Vegas for his next fight, and he bid farewell to his adoring fans in the Japanese capital with another ferocious performance.
