By Rick Reeno

Las Vegas, Nevada - Floyd Mayweather Sr., father and trainer of WBC/WBA welterweight and junior middleweight champion Floyd Mayweather Jr., strongly disagrees that Manny Pacquiao would be the biggest win of his son's career. Mayweather takes on Pacquiao on May 2nd at the MGM Grand in Las Vegas.

Floyd Sr. says several of their past opponents have been better fighters than Pacquiao - including Saul "Canelo" Alvarez, who Mayweather decisioned in 2013 - and even Marcos Maidana, who Mayweather beat twice, by decision, in 2014.

"I'm not going to say that [Pacquiao is] the biggest victory of his career, because people like Alvarez was a better opponent. I believe [Robert] Guerrero was a good opponent. Even the last guy he fought, Maidana was better than [Pacquiao]," Floyd Sr. said.

When asked if he was serious about Maidana being better than Pacquiao, Floyd Sr. became animated.

"Put Maidana and Pacquiao in the ring and see what happens. After Floyd gets through whooping his ass, put Pacquiao in the ring with Maidana and see what happens. Maidana is gonna rape him...rape him....take his clothes off in front off 3,000 people in the house or whatever [number of people are there]," Floyd Sr. said.