Wladimir would cause Tyson alot of problems because of his size, jab and his ability to avoid inside fighting with timely clinches and underrated footwork.
Tyson's ability to get inside with his head movement and footwork definitely makes him a tough opponent for Wladimir and when you combine the speed and power he had, Tyson should be able to get his shots off before Wladimir gets into his clinches.
If Wladimir can get past the first four rounds i think he wins.
Chances are though imo, Tyson gets to him before then.
Tyson by early stoppage.