Floyd Mayweather and Manny Pacquiao 's fight may have been a let - down for some fans .
It saw the boxers ' bank accounts skyrocket well clear of the field when it comes to sport 's top earners .
Floyd Mayweather and Manny Pacquiao 's fight may have been a let - down for some fans but it saw the boxers ' bank accounts skyrocket well clear of the field when it comes to sport 's top earners .