Lyoto Machida explains post-staredown scream, predicts Bisping vs. GSP winner

SAO PAULO, Brazil — Lyoto Machida explains why he screamed after his staredown with Derek Brunson after the UFC Sao Paulo media day, why Brunson is a perfect match-up, how the glasses he wore at the open workouts helped his reflexes, his thoughts on Michael Bisping vs. Georges St-Pierre, and more.