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LAS VEGAS, NV - JULY 06: BJ Penn enters the Octagon before his featherweight fight against Frankie Edgar during the Ultimate Fighter Finale inside the Mandalay Bay Events Center on July 6, 2014 in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)

LAS VEGAS, NV - JULY 06:  BJ Penn enters the Octagon before his featherweight fight against Frankie Edgar during the Ultimate Fighter Finale inside the Mandalay Bay Events Center on July 6, 2014 in Las Vegas, Nevada.  (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)