UFC divisional rankings: Tai Tuivasa enters heavyweight top 10 with knockout of Derrick Lewis at UFC 271 | CBS Sports Headlines UFC divisional rankings: Tai Tuivasa enters heavyweight top 10 with knockout of Derrick Lewis at UFC 271 Tuivasa scored the biggest win of his career when he knocked out … Continue reading UFC divisional rankings: Tai Tuivasa enters heavyweight top 10 with knockout of Derrick Lewis at UFC 271