By Dan Treadway
February 03, 2014

Last week an unsourced tweet made its rounds claiming that champion boxer Floyd Mayweather bet $10.4 million on the Denver Broncos.

Not that this claim seemed completely unbelievable -- Floyd has the money and he's certainly been known to bet large sums. But due to the buzz it caused, the boxer took to Instagram yesterday to directly respond to the rumors:

but given that he reportedly made $90 million in earnings in 2013

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