"It's an interesting match-up. Both guys have great wrestling backgrounds, and I know from my own experience that my toughest fights were against guys with good wrestling backgrounds. If [Velasquez] can stay away and not end up underneath Brock early, not take any serious damage there, the longer it goes the better it is for Cain. He's one of those guys at that weight class who has an unlimited gas tank. He's not going to get tired. Brock is a huge athlete. Every time he's out there we see something else. In the [Shane] Carwin fight he took a beating and still came back and found a way to win. I think that was important for him. Hopefully he got a bunch of big guys to come in so he could practice being in that worst-case scenario, which is having a guy like Brock sitting on you and hitting you in the head and ramming you into the fence," Couture said. "Those are the things that a guy that size can really do to you. I think if [Velasquez has] prepared himself for that worst-case scenario, and has prepared himself to survive there, he'll be able to do that in the fight."

Randy Couture talks to MMA Fighting about the matchup between Brock Lesnar and Cain Velasquez.