LAS VEGAS, NV - DECEMBER 29:  (L-R) Cain Velasquez punches Junior dos Santos during their heavyweight championship fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images) *** Local Caption *** Junior dos Santos; Cain Velasquez
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