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The UFC on ESPN 46 main event is official after middleweight weight contenders Jared Cannonier and Marvin Vettori made weight in Las Vegas.      Related StoriesNikolas Motta sees good shot at Performance of the Night vs. Manuel Torres at UFC on ESPN 46UFC on ESPN 46's Pat Sabatini warns Lucas Almeida 'there's levels' to their grappling gamesUFC on ESPN 46 weigh-in results and live video stream (noon ET)