I expected Uysk to win via UD, where Usyk will dominate by outboxing Dubois since he is a very technical boxer, but damn, the guy went up and beyond and got a knockout. This fight just cemented that Usyk beats Dubois without any doubt.
He had already tasted Dubois' power and weakness in his defense, so it became easy for him to seize the opportunity. Dubois wants to corner him so he can impose his will just like he did against Joshua. Usyk is fully aware of this, so he counterpunches to prevent Dubois from cornering him. One of the punches landed, hurting Dubois. Once Usyk hurts his opponent, he knows how to finish him off.
I saw a thread weeks ago about the possible match-up between Fury and Usyk. I wouldn't be surprised if Usyk ended up winning against Fury and leaving Fury with 3 losses in a row from the same boxer(which would be rough mentally if you ask me).
Fury should take a fight first and prove to everybody that he still has it before facing Usyk; it’s hard to sell a fight when he has suffered two consecutive losses from the same opponent.