You can say tyson wins but ends his career is a bit excessive, plenty of bums fought on after tyson lol
I quite like Joshua. But this is a bad match up for him. Joshua at the moment is similar to Bruno, maybe a bit better. He is just lucky he doesn't have to deal with a Witherspoon, a young rampaging Tyson, or a Lennox Lewis. In time, Joshua could become as refined as Lewis was and maybe as good. He is improving. But he still gets hit way too easily, does not have a very good chin. If Povetkin can stagger him at almost 40 years of age, a young Tyson with his lightning speed will have zero problems closing the distance. Joshua may be able to block Tyson's left hook but when has he ever shown how he would deal with a 6 punch power combination thrown on 2-3 seconds? Its the type of handspeed and combination of handspeed and power he has never seen before and likely will never see in his career. If Joshua had a McCall like chin, even then i think Tyson would outwork him and win a decision. Too fast. However, given Joshua's tendency to get staggered, he is not surviving a rampaging Tyson.
Prime Mike Tyson is a bad matchup for most fighters. Mike was small but his skills were immense, and that's the real reason why small heavyweights struggle nowadays because it takes elite skills and a huge skill advantage to beat these 6'6 heavyweights. That and the stamina to work harder for 12 rounds if need be.
It's funny how divisive a figure has become in boxing circles. Personally I lean more to the hype job than ATG side of the argument but it's funny how black and white people seem to see it.