Four time IBJJF World Champion Mikey Musumeci made his ONE Championship debut on Friday against leg lock pioneer Masakazu Imanari. Musumeci signed with the organization in March, as the Singapore-based promotion continues to build its roster of world-class grapplers. Current grapplers on the roster include Andre Galvao, Gordon Ryan, Tom DeBlass, Danielle Kelly, and the Ruotolo brothers. MMA fighters who made transitions from grappling to MMA such as Marcus “Buchecha” Almeida, Garry Tonon, and Yuri Simoes are also signed with the promotion. The bout was scheduled for 12 minutes with submission only rules. If it were to end with no submission, the athlete with the most legitimate submission attempts would win.