LAS VEGAS, NV - JULY 7:   (R-L) Chael Sonnen wrestles Anderson Silva during their UFC middleweight championship bout at UFC 148 inside MGM Grand Garden Arena on July 7, 2012 in Las Vegas, Nevada.  (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)  *** Local Caption *** Anderson Silva; Chael Sonnen
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