If you ever need proof of the volatility of mixed martial arts, look no further that Bellator 138's co-main event. In a wild sequence, Bellator featherweight champion Patricio "Pitbull" Freire rallied back from a near-stoppage loss at the end of round one to defend his featherweight title just minutes later with a ridiculous one-punch knockout over challenger Daniel Weichel. Catch the action below, courtesy of Zombie Prophet.