It had been almost a full year since Lee last competed prior to her rematch with Mei Yamaguchi at ONE Championship: Unstoppable Dreams on May 18. Lee won the inaugural ONE 115-pound (classified as “atomweight” by the organization) title in an exciting five-round bout with Yamaguchi in May 2016 and successfully fended off two challengers en route to a second fight with her Japanese rival.
Lee-Yamaguchi II was originally scheduled for Nov. 24, but two weeks prior to that meeting Lee was involved in a serious car accident that left her vehicle mangled, the fighter was able to escape the incident in relatively good health.