Derrick Lewis whoops it up after stopping Rodrigo Nascimento

(Photo credit: Jeff Le-USA TODAY Sports)

Derrick Lewis stopped Rodrigo Nascimento 49 seconds into the third round of their UFC Fight Night heavyweight match in St. Louis on Saturday night.

Lewis' 15th knockout came in the main event, adding to his all-time KO lead in the heavyweight division. He's now two ahead of Frank Mir, who is retired. Lewis (28-12-0, 1 no-contest) had the bout's only knockdown and led in significan