Didn't Usyk give Wlad all he could handled when they sparred for Wlad's fight vs Fury in 2015? Johnny Nelson said Wlad threw him out after 1 round of sparring saying "not when the press are here" which suggests Usyk was competitive. By 2017 Wlad was too far past his best and had been inactive after the Fury loss so I could see Usyk getting the better of him.
They say a skilled big man always beat a skilled smaller man. this is exactly the case here. Wlad beats him... There's nothing Usyk does the Wlad can't... plus Wlad has huge power, Usyk doesnt. maybe slight edge in the chin department to Usyk.
Usyk wins. Not only because Wlad was in his 40s at that point but because it's a bad match up for him stylistically
I don't understand how this can be accurately predicted yet, we haven't even SEEN 2021 Usyk fight yet.