I think Mad Dog might be a decent athlete. He's about 6' and he's definetly in pretty good shape for his age (almost 50). He's an avid runner. He can run a 10k in sub 8 min/mile. He's a decent golfer, they showed some of his shots on tv and he looks ok. Pus I heard he's starting to hit the weights with the express purspose of improving his tennis game.
I hate to think about it, but maybe, just mabe he is a 4.5.
He's got fire and energy. So he can get himself pumped up on the court.
Plus he's got some sweet footwork.