Mayweather Received IV Injection Before Pacquiao Fight, Pac-Man Wants Rematch

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Manny Pacquiao was denied a cortisone shot for his injured shoulder before his fight against Floyd Mayweather on May 2, but Floyd is now under fire for receiving an intravenous injection mix of saline and vitamins -- which is banned under World Anti-Doping Agency guidelines.

The United States Anti-Doping Agency on Thursday (September 10) disputed that Mayweather violated any rules, saying the boxer applied for and was granted an exemption for the infusion.

"As already confirmed by the USADA statement, I did not commit any violations of the Nevada or USADA drug testing guidelines," Mayweather said in a statement. "I follow and have always followed the rules of Nevada and USADA, the gold standard of drug testing.

Mayweather's IV usage, which was reported this week by SB Nation, was allowed by USADA... despite it being against the very WADA rules that USADA claims to follow. The fight's contract allowed for therapeutic use exemptions, but USADA issued Mayweather's exemption for the IV use three weeks after the fight... which is unusual.

Additionally, USADA did not notify the Nevada State Athletic Commission or Pacquiao's team until after it was granted well after the fight.

Due to the revelation of this news, Pacquiao is demanding a rematch, saying he was treated unfairly. He says the Nevada body refused to let him use a USADA-approved painkiller for the fight, when he was carrying a shoulder injury.

"That is why I want a rematch. One without any injury and with fair play. No favoritism. Not one where the Mayweather camp gets to dictate all the terms and conditions," he told Filipino reporters this week.

"Truth finally came out and I was vindicated," Pacquiao later added. "(The) Mayweather camp accused me of using PEDs (performance-enhancing drugs). Now look what happened."