Be sure to tune in to HIYW tonight at 4 PM PT (7 p.m. ET) for the official UFC 148 weigh ins in live from Las Vegas, NV. UFC middleweight champ Anderson Silva will put his title on the line against his nemesis Chael Sonnen in one of the most anticipated fights in UFC history. The fight will be a grudge match when the cage door closes and only one man will leave town with the UFC belt. Former UFC light heavyweight champ Forrest Griffin will face Tito Ortiz in his last fight in the octagon in the co-main event.