Mayweather says Pacquiao won't get 50-50 split for fight

Floyd Mayweather Jr. says Manny Pacquiao is "not one of the sharpest knives in the drawer" and claims he won't face him unless his opponent agrees to take less than half the money.

Speaking at a news conference Tuesday at the Apollo Theater to promote his May 5 bout against Miguel Cotto for the WBA Super Welterweight title, Mayweather said of Pacquiao: "He faces Floyd Mayweather, he's not getting 50-50. Not at all. No one is getting 50-50."

Mayweather said Pacquiao should "take the test," a reference to his demand for random drug testing. Pacquiao sued Mayweather for defamation in December 2009, alleging Mayweather falsely accused him of using performance-enhancing drugs.

Mayweather is to begin a 90-day jail sentence on June 1 stemming from a domestic violence case.