UFC 117 Predictions Main card: Middleweight Championship bout: Anderson Silva vs. Chael Sonnen Prediction: Anderson Silva by KO (Knees) in the 1st Round Catchweight bout (171.5 Ibs): Jon Fitch vs. Thiago Alves Prediction: Jon Fitch by TKO (punches) in the 3rd Round Lightweight bout: Clay Guida vs. Rafael dos Anjos Prediction: Clay Guida by submission (RNC) in the…