Hot MMA Fighter: No Boob for You

Gina Carano -- the hottest thing to happen to female MMA fighting since the scissor lock -- has been propositioned by Playboy to appear in her very own knockout spread ... but don't expect to see Gina naked any time soon.

Sources close to Carano tell us Playboy has knocked on the fighter's door "multiple times" over the past year, but the fighter has shot down their offers so quickly that "it never even reached to a point where we would talk about money."

Sorry fight fans, but the only skin you'll get to see any time soon is on Dana White's head.