Newly crowned undisputed ONE flyweight MMA world champion 'Little Piranha' Yuya Wakamatsu of Japan is known for his non-stop attack and relentless forward pressure, which really came in handy when he ...

Newly crowned undisputed ONE flyweight MMA world champion 'Little Piranha' Yuya Wakamatsu of Japan had to move a lot of his training around and alter his mindset.

Relive the shocking rematch for the vacant flyweight MMA crown between Japanese superstar Yuya Wakamatsu and former divisional king Adriano Moraes at ONE 172 in Japan! 📺 Watch the full ONE 172: ...