By Rick Reeno

MGM Grand, Las Vegas - WBC welterweight champion Floyd Mayweather Jr. (42-0, 26KOs) was red hot at the post-fight press conference at the MGM Grand. Following his fourth round knockout of Victor Ortiz, Mayweather was obviously mobbed with questions regarding a super-fight with WBO welterweight champion Manny Pacquiao.

He doesn't believe Pacquiao legitimately wants to involve himself in a random drug testing protocol. Mayweather refuses to fight Pacquiao unless both boxers undergo a pre-fight random drug testing protocol. Once Mayweather got started with his verbal assault, he held nothing back regarding his feelings on the Filipino superstar.

"This boy don't want to fight. All he's just doing is fighting my leftovers. All Pacquiao is doing is fighting my leftovers. I beat Ricky Hatton when he was undefeated. After I beat Ricky Hatton then they go and fight him. I beat [Oscar] De La Hoya at the weight that he chose. He chose the weight, he chose the gloves. He beat De La Hoya at a weight he hadn't made in twelve years. They say Shane Mosley's best performance was when he fought Antonio Margarito. I beat him and they say he's over the hill. But then after knocking Antonio Margarito out, a guy who got caught cheating, who's with Bob Arum, and should have been banned from the sport for good. You know how it is," Mayweather said.

"I don't take anything away from Marquez. He's fighting Marquez and we know Pacquiao got his ass kicked twice. We already know this. I took two years off and fought Marquez. They said you're too big for Marquez, but you're not too big for Pacquiao and they're the same size. I just don't understand it. They said they offered me a certain amount of money. How can they offer me anything? I do the offering. Pacquiao has a boss. He has to get his business in order. When he fights, he gives up 30 percent of his check, I get 100 percent of the revenue. I don't need Pacquiao. Every time I go out there I'm going to make $70 million. I don't need Pacquiao."

"Where was he in 96, 97, 98, 99, 2000, 2001 when I was dominating the game. Now when I'm 34 they say this guy wants to fight. They didn't ask me when I was in my twenties or when I was in my teens. I tell you reporters the same shi* over and over and over again. If were to go up right now to heavyweight and compete with the Klitschkos, you would say 'Floyd Mayweather is on something.' But a man goes up from 105 to 154 and you say 'oh, it's all natural.' C'mon man, wake up.  "

"Pacquiao is famous because he is attached to my name. When they say Pacquiao, they say that's the guy they are trying to get to fight Floyd Mayweather. When they say Floyd Mayweather - they say that's an all-time great."