At UFC 273, Chimaev (11-0 MMA, 5-0 UFC) defeated Burns (20-5 MMA, 13-5 UFC) via unanimous decision (29-28, 29-28, 29-28) in an all-time, all-action thriller. The welterweight bout was part of the pay-per-view main card at Vystar Veterans Memorial Arena in Jacksonville, Fla.