Mayweather learnt his boxing skills from his father, a former fighter who was stopped by Sugar Ray Leonard in 10 rounds in 1978, until Floyd Sr. was given a five-and-a-half-year jail term for drug trafficking when his son was 16.
It meant he was absent for the bronze medal his son won at the 1996 Olympics in Atlanta and the start of his professional career later that year.
Floyd Sr. trained his son upon his release from prison in 1998 but the pair fell out soon after, with their last fight taking place in 2000 as the then junior lightweight champion defended his title.
Floyd's uncle Roger -- who won two titles himself in the 1990s -- took charge but there is little lost between the siblings, even if Floyd Jr may be trying to change this in what may prove to be his toughest fight so far.
"He figures he can (bring us together) by having us in the corner together," Roger told MLive.com in April. "That's the only thing I can think of. All this time, Floyd's been with me, the whole time he's boxed. So for it to be something else, it's something that he's trying to mend."
And recent comments from Floyd Jr. do nothing to dispel the notion that a man whose career is built upon effective violence is trying to bring harmony to a warring boxing dynasty.
"The arguments we had in the past or the differences my dad and my uncle had in the past---that's the past," Mayweather, who is often labeled the world's best pound-to-pound boxer, said in May.
"That's why we call it the past because we try to leave that in the past and focus on the future and the future should be bright."