Floyd Mayweather Junior has indicated he's not interested in a rematch with Manny Pacquiao "because he's a sore loser and he's a coward".
In an upcoming TV interview with Showtime, the winner of boxing's richest fight talks about the bout and fallout from it.
Pacquiao faces surgery, possible suspension and a $5.5m lawsuit from angry fans over his alleged non-disclosure of a shoulder injury before the fight, though he revealed the complaint within an hour of losing.
The Mayweather interview was recorded late Tuesday and will air Saturday night, after the network's replay of the fight won by Mayweather at the MGM Grand in Las Vegas.
Mayweather won by decision, extending his unbeaten streak for a career record of 48-0.
Asked in the interview if he thought Pacquiao was hampered by the right shoulder injury that later required surgery, Mayweather says: "Absolutely not."
Floyd Mayweather Jr evades a Manny Pacquiao punch in their fight won at the MGM Grand, Las Vegas.
"Excuses, excuses, excuses," he said later.
"He was fast," Mayweather insists in quotes released from the interview.
"His left hand was fast. His right hand was fast and he was throwing them both fast and strong."
Using an expletive for emphasis, Mayweather added that "I'm not going to buy into" it, "and I don't want the public to buy into" it.
"He lost," Mayweather said.
"He knows he lost. I lost a lot of respect for him after all of this."
Mayweather acknowledges in the interview that he earlier texted ESPN's Stephen Smith to say he welcomed a rematch.
"Yeah, but I change my mind," Mayweather said.
"At this particular time, no, because he's a sore loser and he's a coward. If you lost, accept the loss and say, 'Mayweather, you were the better fighter.'"
