Shigetoshi Kotari and Hiromasa Urakawa, both 28, died after sustaining brain injuries during separate bouts on the same card at Tokyo's Korakuen Hall.

Two Japanese boxers have died from brain injuries sustained in separate bouts on the same card at Tokyo’s Korakuen Hall.

Two Japanese boxers, Shigetoshi Kotari and Kiromasa Urakawa, have died from brain injuries they each sustained while competing at the same event, though in different fights, at Korakuen Hall in Tokyo on Aug.