1. Floyd Mayweather
The man’s nickname says it all. In sum, “Money”‘s namesake motivated him throughout his career. There’s no denying that Mayweather achieved both glory and riches, but nobody chased the latter like him. A multi-weight 50-0 fighter, Mayweather had an incredible career.
However, his crazy lifestyle caused him to become bankrupt on several occasions. Meanwhile, he carefully managed his career to the frustration of many fans. For example, his clash against Manny Pacquaio came about four years too late. Add in the likes of the Conor McGregor fight and you can see why he’s the ultimate mercenary.