It might not have been Herb Dean who had to stop the unrelenting fists of Cain Velasquez to Brock Lesnar's head. Maybe it was Lesnar who told the referee enough was enough.
It was difficult to hear over the roars of the crowd of 14,856 at the Honda Center. Lesnar didn't show up to the postfight news conference. When UFC president Dana White was asked whether Lesnar verbally submitted, he said, "I don't know for sure, but from what I saw, he did." Directly after the fight, Velasquez said that Lesnar had verbally tapped, but he later said he couldn't hear.
Either way, Velasquez's performance was certainly dominant enough for more than one person to call for the bell before the first round was over. In a matter of 4 minutes and 12 seconds, Lesnar's title reign was over and Velasquez became the sport's first heavyweight champion of Mexican descent.