Floyd Mayweather comes out a winner even if the report of a $5.9 million bet ...

Welterweight champ Floyd Mayweather said he will fight Canelo Alvarez in September. (Ethan Miller/Getty Images). Floyd Mayweather, Jr. will fight Canelo Alvarez on Sept. 14, the undefeated welterweight championWelterweight champ Floyd Mayweather said he will fight Canelo Alvarez in September. (Ethan Miller/Getty Images). Floyd Mayweather, Jr. will fight Canelo Alvarez on Sept. 14, the undefeated welterweight championFloyd Mayweather bets $5.9 million on Miami Heat, only wins $600,000. 8:05 AM EDT. 6/4/2013 by Amir Shaw. floyd-mayweather-lebron-james. Floyd Mayweather is either a die-hard Miami Heat fan, or he is a bit overly competitive when it comes to gambling.Boxer Floyd Mayweather Jr. was the world's highest paid athlete last year, and he's certainly not letting anyone forget -- according to Vegas Gambling Steam he put down a mere $5.9M on the NBA's Eastern Conference FinalIn around 29 months' time, Floyd Mayweather Jr. will likely quickstep his way into boxing retirement, with the things he cares about the most firmly intact. Andre Ward is widely considered the second-best boxer in the world, behind only Floyd
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