Ahead of the highly anticipated IBF Heavyweight Championship fight between Anthony Joshua and Daniel Dubois on September 21, speculation about their past sparring sessions has resurfaced. Former Team GB boxer Anthony Fowler, who witnessed their spar in 2016, claimed that Dubois caught Joshua with a short left hook that left him with 'jelly' legs, prompting Joshua's coach to advise him to take a break. While both fighters have remained tight-lipped about the sparring rumors, Fowler's account has reignited debates about who hits harder, with Frazer Clarke noting that while Joshua may deliver sharper punches, Dubois's hits carry significant power. Clarke also mentioned that neither Joshua nor Dubois compares to David Price in terms of punching power, stating that Price's ability was 'different gravy.' With both fighters preparing for their matchup, the rivalry continues to intensify as they seek to establish their dominance in the heavyweight division.