Carl Froch is mentally very strong. He's never out of a fight and thinks he's going to win no matter how far down on the cards he might be.
Williams Bute beating the count in the 12th against Andrade when he looked like he was dead and then knocking him out in 4 in the rematch
Williams is definately up there. I've seen him get cut, hurt, and even dropped. None of it phases him.