Roger "Black Mamba" Mayweather dies aged 58

Exclusive            Getty

Exclusive Getty

Roger Mayweather was a two-time world champion in his own fighting career but will be best remembered for the 12 years spent in his nephew's corner as Floyd became regarded by many as the best pound-for-pound boxer in the world. Roger Mayweather's death was reported just about a week after that Josie Harris, Floyd Mayweather's ex-girlfriend and the mother of three of his children, was found dead.

Former world champion and well-known boxing trainer Roger Mayweather, the uncle of Floyd Mayweather Jr., has died at the age of 58 after years of failing health and complications from diabetes.

"My uncle was one of the most important people in my life inside and outside of the ring", Floyd Mayweather said in a statement. See below at the 7:11 mark.

Mayweather was a two-weight world champion.

We're told Floyd was close with Roger and is deeply emotional about his passing.

Floyd Mayweather has suffered a second personal heartbreak in a matter of days after his uncle Roger, who played an integral role in his fabled career, passed away aged 58 according to TMZ.

Roger took over training when Floyd's father, Floyd Sr, was in prison.

He first began working with Floyd in the late 1990s and over 12 years helped shape him into one of the best pound-for-pound boxers of all time, amassing an unblemished 50-0 record.

Roger fought in the featherweight, lightweight and welterweight boxing classes and was 59-13 in his pro career, which spanned 1981-1999.

Roger Mayweather with son Lekei and daughter Jade in 2015.

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