I bet everyone saying Dillian Whyte will be KO'd have been saying the same thing ever since he became a "name". He seems like a boxer whom many are simply unwilling to give credit, no matter how accomplished he has become. He could retire today and be very proud of his career.
He was caught for steroids before that and was not able to get in shape without juice. The question is if he will try to juice up for Povetkin or come natural, but in a terrible shape.
I give Whyte more credit than just about anybody who isn't from the UK. I love his jab, his body work, how he uses his weight. I still recognize how badly he slows as the fight goes on. Any good fighter has a chance to win against him late. The guy is ready to fall down from exhaustion after the 8th round. That's a big liability for hypotheticals.