It was said during The Ultimate Fighter 18, featuring UFC woman’s bantamweight champion Ronda Rousey and Miesha Tate as coaches, that it was one of the bitterest rivalries in mixed martial arts history. The book was closed on that rivalry when Rousey defeated Tate for a second time at UFC 168 on Dec. 28, but there may be an even bigger rivalry in the making in Brazil between Chael Sonnen and Wanderlei Silva .
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