Kleber Koike will join a short list of legends Sunday when he headlines RIZIN: Otoko Matsuri at the Tokyo Dome arena in Japan ...

Japanese boxer Naoya Inoue is making a rare visit to U.S. this weekend to defend his undisputed junior featherweight title.

Japan will host the 20th Asian Games in 2026. Mixed Martial Arts will debut at the event. It will feature six medal events.