Almost all my credits on Brock. Pretty confident in this one. Cain might have better cardio and technique, but Brock is so much stronger and is a very good wrestler himself. I see Brock taking down Cain and GnP to a victory. Cain hasn't fought anyone as strong as Brock, and I don't think he can stuff all of Brock's takedowns. Once Brock takes Cain down, Cain isn't getting back up.