Queensberry promoter Frank Warren said to DAZN: "It was a phenomenal fight and I always felt it would be a Hagler-Hearns situation. AJ showed his heart right until the end. It was a brilliant fight.
"I always felt Dubois would do it and he has. It's not a turnaround, it was there. He was a young man and had double fractures in his eyes, he couldn't fight. He hurt him [Usyk], I'd like to see him fight him now but he has to fight Tyson now.