Relive some of the most pulse-pounding bouts from the Octagon in this collection of 2010 Ultimate Fighting Championship match-ups, including Brock Lesnar putting his heavyweight belt up for grabs against contenders Shane Carwin and Cain Velasquez. Other featured UFC superstars include lightweight contender Frankie Edgar, who battles B.J. Penn, and "Shogun" Rua, who aims to teach light heavyweight champ Lyoto Machida a dirty trick or two.