On Thursday, ONE Championship unveiled its main event for ONE 166: Qatar. A rematch between champions will cap off a massive night at the Lusail Sports Arena. ONE Middleweight World Champion Reinier De Ridder will try to redeem himself against ONE Heavyweight and Light Heavyweight World Champion Anatoly Malykhin.
The two first met at ONE Fight Night 5 in December 2022. Malykhin steamrolled De Ridder for a first-round knockout victory to become a two-division champion while he held the interim heavyweight crown. Six months later, he’d unify the ONE Heavyweight MMA World Championship to hold two undisputed titles simultaneously.