He certainly looks the part, but I'd like to see how well he does in this one first. He's a class fighter, and I think he'd have success in any era. Hard to say just how good he is at this point, for how much.
He would do well, I think. But he would be forced to rein in a large, very crucial aspect of his game. It would be very difficult to pull off the same footwork in leather shoes on a slippery canvas, but I believe he had the athleticism and mental capacity to adapt it successfully. He could resemble a shiftier version of Tunney in the 1930’s.