By Edward Chaykovsky

Top Rank's CEO Bob Arum is not buying anything Floyd Mayweather Jr. states with respect to a potential fight with Manny Pacquiao in the future. Arum, who promoted Mayweather for a decade, says the WBC/WBA welterweight champion does not like fighting southpaws.

"I promoted the guy for ten years and I know how difficult it was to get him in the ring with any southpaw. When you talk about a southpaw who can move like Manny, that's not the kind of opponent that Mayweather feels he would do well against. That's the problem. If Manny agreed to fight right-handed, the fight would be agreed in five minutes," Arum told Gareth Davies of The Telegraph.

"I don't think Mayweather will ever agree to fight Pacquiao, particularly while he has a cushy deal with Showtime. He makes money fighting anybody," Arum said. 

Arum also disputes that Mayweather makes more money per fight than Pacquiao.

"You can't believe a word they say. He has a guarantee of $32 million with Showtime and they agreed to increase that to $40 million when he fought Canelo. But his guarantee for the Maidana fight is $32 million. It's still a lot of money, but, remember, in the United States he still has to pay federal income tax to 39.6 per cent. Manny makes more than he does by fighting outside the United States at least once a year. Manny's net income after tax is more than Floyd's."