Kamaru Usman was ready to party his face off after practically knocking Jorge Masvidal's face into space during UFC 261 ... and he did that and then some at a post-fight rager.
The Nigerian mixed martial artist swung by Myth Night Club late Saturday night after beating the brakes off Masvidal at the nearby VyStar Veterans Memorial Arena in Jacksonville, FL ... and club-goers were definitely ready to embrace the welterweight champ.
Usman was dressed to impress as well ... rocking a clean suit and some shades. He was ready to boogie too -- the guy didn't shy away from the dance floor, or the DJ booth.