Shigetoshi Kotari died on Friday, Hiromasa Urakawa on Saturday after being injured in fights in Tokyo on August 2.

Shigetoshi Kotari, 28, had emergency brain surgery last weekend following a fight for the OPBF super-featherweight title

Japanese boxers Shigetoshi Kotari and Hiromasa Urakawa have died from brain injuries suffered during separate fights at an Aug. 2 match in Tokyo.