Daniel Dubois, once seen as a heavyweight champion lacking validation, seized his defining moment on Saturday night. In a stunning five-round victory, the young challenger from Greenwich dethroned veteran Anthony Joshua, leaving 96,000 fans at Wembley Stadium in awe as the proverbial torch was passed to a new generation.

Dubois’ youth, fearlessness, and sheer determination outmatched Joshua’s experience, decisively ending the bout and cementing his legitimacy as a world champion. Just months ago, Dubois’ declaration of being a "king slayer" was met with skepticism, with many dismissing his title as a mere technicality after being elevated from interim to full world champion when Oleksandr Usyk vacated the IBF belt. Now, those doubters have been silenced.

The event, featuring musical performances by Liam Gallagher, added to the spectacle, but it was Dubois who stole the show. Joshua’s ambitions to become a three-time world champion were dashed, leaving his future in the sport uncertain. This latest defeat raises questions about the former champion’s next steps, as his once-stellar career reaches a crossroads.

BBC Sport delves into Dubois' career-defining moment and explores the implications for Joshua and the broader landscape of the heavyweight division.