Dana White: “BJ Penn Will Probably Retire if He Loses to Rory MacDonald”

BJ Penn could be stepping into the Octagon for the last time at UFC on Fox 5, according to Dana White. The former two-division champion will face Rory MacDonald in a highly anticipated welterweight showdown. White believes it's all or nothing for Penn, who initially retired a little over a year ago. The fight against MacDonald is a chance for Penn to prove his relevance in the sport. A win would open the doors for a plethora of intriguing match-ups, but a loss would be devastating. White recentl...