By David "Los Gatos" Rosenberg

WBC welterweight champion Floyd Mayweather Jr. believes that Manny Pacquiao is avoiding their potential mega-fight, and continues to use to his name to build up his fanbase. Mayweather came back on Saturday night at the MGM Grand in Las Vegas and knocked out Victor Ortiz in four rounds. Pacquiao is scheduled to defend his WBO welterweight title against Juan Manuel Marquez on November 12th.

"They are lying to y'all. They are just trying to steal my fanbase. They are piggybacking on my fanbase. Every fight they sell they say 'we want to fight Mayweather.' It's not true, but they don't really want to fight. They are bullsh*ting you guys. Once he loses it's overwith," Mayweather said.

Mayweather wants to fight Pacquiao, but only if USADA [United States Anti-Doping Agency] handles the random drug testing protocol for both boxers. He says Pacquiao is willing to take those tests, but claims the Filipino boxer is only willing if certain conditions are met.

"Exactly what he said is, he wants to take the test but for a whole month [before the fight] he doesn't want to take the test, and when he is tested he wants to be warned, he wants to know when [the USADA agents] are coming. Everything they say is bullsh*t. They are just trying to steal my fanbase. How dow you think he got this big? By being connected to my name," Mayweather said.