There's a reason Floyd Mayweather's nickname is "Money," and that is because he's a certified piggy bank able to generate huge amounts of revenue in various ways, boxing being the #1 way.

During his comeback fight, and complete domination, against Juan Manuel Marquez at the MGM in Las Vegas last Saturday (September 19), Mayweather generated one million pay-per-view buys, equaling $52 million ... that was just from PPV.

The numbers don't lie. The boxing superstar is the biggest attraction in boxing at press day, and one of the highest grossing stars ever in the sport's history.

"I am truly humbled by the numbers, and I appreciate all of the sports fans who either came to the fight or bought it on pay-per-view," said Mayweather. "It felt great to be back in the ring and next time I will be even better."

The million buys include 525,000 from cable homes and 475,000 from satellite homes. It is only the fifth time in boxing pay-per-view history that a non-heavyweight event has attained the one million buy mark. Keep in mind, this came after a 21-month absence from the ring, where he showed no signs of ring rust.

He has now participated in two events that have reached the one million buy mark.

"September 19th was an event that connected with sports fans across the country," said Mark Taffet of HBO Pay-Per-View. "Floyd Mayweather has clearly reinforced his standing as a top attraction and fans are excited about his return to the sport."

Mayweather's record breaking run, which began in 2007 with his mega-fight against Oscar De La Hoya, may finally silence his critics. In his last three bouts, Mayweather has delivered a record shattering total of nearly 4.4 million pay-per-view homes and over $300 million in revenue combined.

His dominance in the ring last Saturday -- in which he showed off an array of power, speed, intelligence, and phenomenal defense -- proved that he has not lost a step.

"I returned to boxing to fight the best, and that's what I intend to do," Mayweather concluded.