Tito Ortiz knuckles up with Bernard Hopkins in a staredown at the Joe Hand Gym in Philadelphia, Pa., during the UFC 133 open media workout (Pic). Hopkins, a world class professional boxing champion, hails from the "City of Brotherly Love." In the past he's been critical of mixed martial arts, but has recently changed his tune. In fact, he will be in attendance at the Wells Fargo Center this weekend (Aug. 6, 2011) when "The Huntington Beach Bad Boy" takes on Rashad Evans in the night's main event. To hear more from Hopkins on his recent change of heart regarding MMA click here.