Even more impressive is the fact that his net worth was made with barely any endorsements .
With an estimated net worth of $280 million , Mayweather Jr. is by far the richest boxer in the world .
Even more impressive is the fact that Mayweather Jr. 's net worth was made with barely any endorsements .
With an estimated net worth of $280 million , Mayweather Jr. is by far the richest boxer in the world .