(Pettis perfectly executes an off-the-cage “Showtime Gloat.” / Photo via Getty) Over the weekend, UFC president Dana White revealed that lightweight champion Anthony Pettis had suffered a knee injury in training, but was still expected to defend his belt against Josh Thomson in the main event of UFC on FOX 9 (December 14th, Sacramento). “He’s going to fight,” White said. “For sure.” Well, not really. UFC officials announced... 

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