The animosity between The Ultimate Fighter Brazil 3 coaches Wanderlei Silva and Chael Sonnen came to a head on the most recent episode of the show with the two coaches coming to blows and one of Silva’s assistant coaches attacking Sonnen from behind during the melee. The friction largely stems from Sonnen’s past comments disparaging former champion Anderson Silva and Brazil. Wanderlei Silva, as a proud Brazilian, let it boil to the point that he confronted Sonnen during filming of the reality series. Also a proud Brazilian, UFC middleweight contender Vitor Belfort , however, did not condone the actions of Silva and Sonnen on the show. In fact, Belfort said he was “embarrassed” by their actions
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Vitor Belfort Embarrassed by Silva/Sonnen Brawl, Calls it Unacceptable in MMA – MMA Weekly