he'd get koed on his way up as he did in his real career. there were no K bros picking 37 year old retired failures to defend against during tysons reign, in fact barely any in history.
If we are talking about the version of Tyson that Botha fought, Sanders puts him on a stretcher. Seriously. Go back and look at the fight, Botha was winning the bout until he got caught. Sanders at that time was faster, harder-hitting and far more skilled than Botha, who he'd beaten 4 times in the ams with several KO's. Prime Tyson, you'd have to favour over Sanders, obviously. But even there I think it would be a good one and not all one-sided.
Botha was actually catching and stunning Tyson with uppercuts in the first few rounds. That's why Tyson was holding on like that, refusing to break and than trying to twist Botha's arm, he was getting hurt. I really think Sanders could take this version of Tyson out, who unlike Botha could finish a stunned man or burn out trying. It think it is quite possibly Tyson's worst performance until Lewis.