Bivol does not know whether Dubois hit below the belt in the fight with Usyk

“I saw that very blow to Usyk. In fact, it may seem funny - I have been boxing for over 25 years and have never gone into detail about where this “red line” is. Where a blow is considered below the belt, and where it is not. Here the blow was to the waist. I don’t know how this is interpreted according to the rules. To be honest, I never read the rules. I just tried to always hit above the belt.”