This is such a hard fight to pick, and a dangerous fight for Brock Lesnar. Is it more dangerous than Shane Carwin? I don't know, Cain is a machine and a great wrester with perhaps the best ground and pound going. Is he a better wrestler than Brock Lesnar? I don't know, perhaps but Brock does seem to have a big size and strength advantage. I think if the fight does go the distance then it will be in Cain's corner, but more than likely I think Brock will submit him with a guillotine from the bottom in round 2 or 4.
I am not counting Cain out, I don't want him to win but I think he has a damn good chance. He is an amazing fighter but my instinct tells me that fighting a freak like Brock isn't going to go in his favor.