He's been knocked down and on wobbly legs on at least 2 or 3 occasions and one of them being a blown up super-middle if I remember rightly.
I do mate. I still remember the cocky, arrogant ****'s smug grin after knocking out Enzo and have wanted him to be dropped badly ever since.
Unfortunately if he was the same size he'd be slower, less co-ordinated etc Hayes ability and skill is what is expected to get him there. Haye has the same height and reach (roughly) as Ali, Foreman, Norton, Holmes etc I see no problem, if he really is the real deal.