AceShowbiz - Floyd Mayweather, Jr. has lost another of his loved ones. The former athlete's uncle Roger Mayweather, who was also a legendary boxing trainer, has passed away, a week after Floyd's ex-girlfriend and baby mama Josie Harris died.

Confirming the sad news, Floyd's boxing promotional firm Mayweather Promotions released a statement through its official Twitter account. "We are saddened with the recent news of Roger Mayweather's passing," it read. "Our hearts go out to the Mayweather family and we will keep you in our thoughts and prayers. We thank you all for the outpouring of love and support during this time. Roger's spirit lives on with us forever."

The cause of death is not revealed. Roger was 58.

Roger, the brother of Floyd Jr.'s father Floyd Mayweather, was a professional boxer from 1981 until 1999, before he dedicated his life to serve as Floyd Jr.'s trainer from 2000 to 2012. Under his guidance, his nephew went on to become one of the biggest names in the sport of boxing.

Back in 2015, Floyd shared about his uncle's deteriorating health which was blamed on boxing. "My uncle Roger Mayweather has lost a lot of memory from the sport of boxing," Floyd said. "He's only in his 50s, but it seems like he's an old man in his 80s."

Floyd has not released a personal statement addressing his uncle's death, but TMZ Sports reports that he is deeply emotional about his passing.

This is another loss for Floyd's family after he recently mourned the sudden passing of his ex Josie. The mother of his three children was found dead in a car at her home in Valencia, California on Monday evening, March 9. She was 40. The cause of death is still a mystery since no evidence of drugs or suicide was found at the scene.