Kamaru Usman and Gilbert Burns have faced off hundreds of times with each other in practice. On Saturday, they'll do it for real.
Usman will defend his UFC welterweight title against Burns, his former sparring partner, in the main event of UFC 258 in Las Vegas.
"I know a lot about Kamaru," Burns told ESPN. "I know exactly how he wants to fight. I know a lot about him. On the other hand, he knows a lot about me, too. It's just different. I don't care.