We have yet to confirm if this is true or not, but if history is any precedent then we would not doubt it. Floyd Mayweather has reportedly bet on the Miami Heat to the degree of $5.9 Million. It looks like he got them at -7.
**ALERT** Good source from my #HeavyHitters Vegas crew alerted me that Floyd Mayweather has laid over $5,900,000 on Heat -7 tonight in Vegas
— Vegas Gambling Steam (@Pregame_Steam) June 3, 2013