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LAS VEGAS, NV - DECEMBER 28:  Dennis Siver (top) punches Manny Gamburyan in their featherweight bout during the UFC 168 event at the MGM Grand Garden Arena on December 28, 2013 in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images) *** Local Caption *** Dennis Siver; Manny Gamburyan
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LAS VEGAS, NV - DECEMBER 28: Dennis Siver (top) punches Manny Gamburyan in their featherweight bout during the UFC 168 event at the MGM Grand Garden Arena on December 28, 2013 in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images) *** Local Caption *** Dennis Siver; Manny Gamburyan