Tito vs. Frank Shamrock that is. Check how Conor was taking the shots on the ground without having his head bounced or being sliced up outside of the one cut. He was clearly waiting for his opportunity and took it when it came. Used the body shots to gas Mendes out and must've known he was never going to outright stop the takedown, so rather than hunt for subs just wait it out and try to absorb the damage down there.
Dude will be caught once his chin goes but until then, wow. 