Derek wants to see Alexander fight Joseph Parker Renowned British heavyweight champion Dereck Chisora has named the next opponent for unified world champion Oleksandr Usyk . “I don't want Dubois and Usyk to fight now. What do you want to see? Alexander already stopped him once. If Usyk wants to prove that he is the best, he needs to fight Joseph Parker. To be the best, you have to fight everyone. Usyk has to give Joseph Parker a chance,” Chisora said. Let us recall that the World Boxing Organization (WBO) has officially ordered Ukrainian boxer Oleksandr Usyk to defend his title against Joseph Parker. WBO President Gustavo Oliveri gave Usyk 30 days to negotiate a fight with Parker.