American boxer wilder mocks anthony joshua for losing boxing titles

I think there may be some misinformation here!

Deontay Wilder is an American professional boxer, but I couldn't find any evidence of him mocking Anthony Joshua for losing boxing titles. In fact, Wilder has been quite respectful towards Joshua in the past, even calling him a "great champion" and expressing admiration for his skills.

It's possible that you may be thinking of a different boxer or a specific incident that I'm not aware of. If you could provide more context or clarify what you're referring to, I'd be happy to help clarify things for you!

Just to give you some background, Deontay Wilder is a former WBC heavyweight champion, while Anthony Joshua is a former unified heavyweight champion (WBA, WBO, IBF, and IBO). Both boxers have had their share of ups and downs in their careers, but I'm not aware of any instances where Wilder has mocked Joshua for losing titles.