Welterweight 4 round KO win for Isoya, grandson of Chairman Koichi Wajima
Koichi Wajima Sports Gym chairman Koichi Wajima, right, watches as his grandchild Taishin Isotani, left, is interviewed on the ring after winning a 4R welterweight bout by a first-round KO at Korakuen Hall in Tokyo, Japan, April 12, 2022.
Daishin Isoya being interviewed and Chairman Wajima looking on.