ONE Championship is back in Singapore for the last time this year with two massive events in one day!

The action kicks off with ONE Fight Night 4, which includes two electrifying World Title superfights. In the main event, Kiamrian Abbasov defends the ONE Welterweight World Title against ONE Lightweight World Champion Christian Lee, while Rodtang Jitmuangnon defends his ONE Flyweight Muay Thai World Title against ONE Strawweight Muay Thai World Champion Joseph Lasiri.

And then at ONE163: Akimoto vs. Petchtanong, ONE Bantamweight Kickboxing World Champion Hiroki Akimoto defends his belt against WMC Muay Thai World Champion Petchtanong Petchfergus in the main event. Plus, giants collide for the ONE Heavyweight Kickboxing World Grand Prix Championship, with ONE Light Heavyweight Kickboxing World Champion Roman Kryklia taking on Iranian sensation Iraj Azizpour.

Both cards will feature MMA, Muay Thai, kickboxing, and submission grappling action at the highest level, so mark your calendars, download the ONE Super App, and go to watch.onefc.com / get your tickets now!