“Rest in peace, Shigetoshi Kotari. The boxing world mourns the tragic passing of Japanese fighter Shigetoshi Kotari, who succumbed to injuries sustained during his August 2nd title fight,” they wrote on Friday alongside a black and white photo of Kotari raising one arm in the air.

Two Japanese fighters tragically passed away due to brain injuries sustained during different matches held at the same Tokyo event, according to repo

Shigetoshi Kotari and Hiromasa Urakawa pass away within a day of each other after separate bouts on the same card.