I know he's a short notice replacement for Josh Barnett, but I think Matt Mitrione is a tough fight for Ronny Markes at heavyweight. The Brazilian doesn't have Ryan Bader's elite wrestling to easily take and hold Mitrione down- his wrestling isn't even as Roy Nelson in my opinion. Nor does he have Sergei Kharitonov's striking and power to knock Meathead out easily. Maybe he can catch him on his sometimes questionable chin. But that aside, Mitrione is the biggest guy he has fought with a height and reach advantage and knockout power himself. I'm betting Matt to win here at -185.