Daniel Dubois has 'grown up mentally' and promoter Frank Warren wants him to have a third fight with Oleksandr Usyk

Promoter Frank Warren believes Daniel Dubois victory over Fabio Wardley in their epic brawl has been a key turning point for the new WBO heavyweight champion; Now Dubois has grown up mentally, Warren wants him to have a trilogy with unbeaten, unified champion Oleksandr Usyk