If Michael Chiesa ‘s hunch is right, Friday night just may be the day he catapults from “The Ultimate Fighter” winner to bona fide UFC lightweight contender. “I feel like I’ve proven to the world that I belong in the UFC, and this is the fight where I’m going to prove that I’m a contender,” Chiesa told MMAjunkie. “This is my chance to prove to the world what I really feel: that I’m a championship-caliber fighter