would it improve his current standing? of course, how would it not? it would be the best win of his career and at 41 years old which makes it a more difficult win than it would've been in his prime....so not only his best win but his best win coming at a time when he was at his worst.... it might bump him from just outside the top 20 to #18-20
I'd only have vitali as top 50 or so ATG based on resume. Haye would definitely help with that. I have prime vitali top 5 H2H.