Current and former Japanese boxing champions, including undefeated king Naoya Inoue, assembled this week for an unprecedentedly lavish event at Yoyogi National Gymnasium.

Dubbed "Legend," the night of three-round exhibitions was staged Thursday as a charity event in support of medical workers and patients amid the COVID-19 pandemic.

Rather than lukewarm sparring, participants showcased intense fights before an in-person crowd of 2,548 and spectators watching online.