This edition is fully updated to include Mayweather's battle with UFC star Conor McGregor. Floyd 'Money' Mayweather is one of the most successful professional boxers of all time, with fifty professional victories in a glittering unbeaten ring career that has spanned two decades. Mayweather was born into a boxing family that was barely surviving on the poverty line. His father had enjoyed a modestly successful career in the ring but had to make ends meet on the street. When a rival drug dealer arrived at the house and threatened to shoot him, Floyd Mayweather Sr picked up his son and used him as a human shield. Such were the ashes from which Floyd was to rise. This is the remarkable story of Floyd Mayweather's ascent from these bleak origins to become the highest-paid sportsman on the planet. It is a story of greed, arrogance, abuse, extraordinary boxing ability and unrivalled ambition. In Money, Tris Dixon explores it all in a searing, insightful and often brutal exposé of one of the greatest athletes the world has ever seen.

Fully updated to include Mayweather's battle with UFC star Conor McGregor, reaching the historic 50-0 fight victories that take him past heavyweight legend Rocky Marciano's long-held record.

Floyd Mayweather Jr's father was a boxer, as were his two uncles. His dad also dealt drugs and one day brought his work home with him, when he used his son as a human shield to stop a rival dealer from shooting him. The gunman instead shot his father in the leg, curtailing his own ring career.

This is the only biography of the planet's wealthiest sports star - and one of the world's most controversial. With exclusive interviews with Mayweather's friends, family, entourage, combined with Tris Dixon's expert knowledge of the sport, this remains an essential purchase for sports fans.

Floyd Mayweather Jr has never married, has four children by two women, and is a habitual gambler, known to win and lose millions on a single half of US football or basketball. He is obsessed with money, almost as obsessed as he is about protecting his unbeaten record and his staggering aim to go 49 professional bouts without defeat, to match the achievements of the great Rocky Marciano, a goal that he intends to achieve in late 2015, just shy of his 40th birthday.

Tris Dixon explores his extraordinary life story in this searing, insightful and often brutal exposé of one of the greatest athletes the world has ever seen.