Boxing fans have urged Anthony Joshua to retire after his nightmare defeat to Daniel Dubois on Saturday night. The 34-year-old had gone into the clash expected to continue his stunning form, having won all four of his bouts since his defeat to Oleksandr Usyk in 2022. Yet that didn’t happen, with Dubois flooring Joshua multiple times before delivering the decisive blow in the fifth round of the clash. AJ has now lost to the likes of Usyk, Andy Ruiz Jr and Dubois throughout his career. And some fans on social media believe it’s time for the boxing star to hang up his gloves for good. “Anthony Jo…