Roger mayweather floyds uncle dies boxing world mourns

I think there may be some misinformation here.

Roger Mayweather, Floyd Mayweather's uncle, is actually still alive. He is a former professional boxer and a trainer, and has been involved in Floyd's career. There has been no recent news or reports of his passing.

It's possible that you may be thinking of another person or a different celebrity who has passed away. If you could provide more context or clarify what you're referring to, I'd be happy to try and help you further.