Nicknamed The Black Mamba during his career, the former two-weight division champion who had trained his nephew Floyd Mayweather Jr for a time was a fixture in the boxing community.
"My uncle Roger Mayweather has lost a lot of memory from the sport of boxing", Floyd said.
Following on from his own career he went on to train his nephew and all-time great Floyd Mayweather to insane highs in the boxing world. Unfortunately, his health was failing him for several years and now he can finally rest in peace.
A native of Grand Rapids, Michigan, he fought such names as Julio Cesar Chavez and Pernell Whitaker and was 59-13 with 35 knockouts in an 18-year career that began in 1981.
Indeed, it has been a very painful time for Floyd Mayweather these past few days. Roger had some controversy as a trainer, such as when he entered the ring during Floyd Jr.'s fight with Zab Judah and fought with Zab's father. It is a bad loss for all of us.
Floyd Mayweather announced the death in a statement today.
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"Money" Mayweather went on to become one of the best pound-for-pound boxers the sport has ever seen - something that his uncle played a big part in.
The news of Roger's passing Tuesday comes a week after Mayweather Jr.'s ex-girlfriend and the mother of his three children, Josie Harris, died last Tuesday at the age of 40.
Prayers up for the Mayweather family.
"This is a sad day for the Mayweather Promotions family because that is truly what Roger was to us", he said.
The legendary trainer was in charge of Floyd's corner until 1996, after the American won bronze at the Olympics.