• May 2, 2015; Las Vegas, NV, USA; Floyd Mayweather and Manny Pacquiao box during their world welterweight championship bout at MGM Grand Garden Arena.

May 2, 2015; Las Vegas, NV, USA; Floyd Mayweather and Manny Pacquiao box during their world welterweight championship bout at MGM Grand Garden Arena. (Photo : USA TODAY Sports )

Floyd Mayweather Jr. has a change of hearts regarding his intention in giving Manny Pacquiao a rematch, insisting the Filipino champ doesn't deserve another shot at him because he's nothing but a sore loser.

Mayweather, who is coming off a legacy-cementing win against Pacquiao in a bout dubbed as the "Fight of the Century" on May 3 at MGM Grand Garden in Las Vegas, Nevada, believed Pacquiao blew his one and only chance of shattering his undefeated record when he lost to him via unanimous decision in the welterweight showdown roughly a week ago.

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The reigning Light Middleweight and Welterweight kingpin previously offered Pacquiao an opportunity to redeem himself by granting him a rematch. However, Mayweather backtracked from his statement, saying he's not interested to fight the Filipino ring icon anymore.

"Yeah, but I change my mind," Mayweather said in an interview with Jim Grey, which is believed recorded late Tuesday night (via Times.com). "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."

Pacquiao suffered his sixth and perhaps the biggest loss in his professional boxing career, succumbing to Mayweather's defensive prowess and counter right hand. However, Pacquiao created a much larger controversy in the aftermath of the fight after disclosing he injured his right shoulder two weeks heading into the match.

Pacquiao claimed that he was denied of taking an inflammatory shot heading into the fight, but the Nevada Athletic Commission countered that they were not given notice of the injury until the final hours before his showdown with Mayweather.

"Disclosure is a big thing for us, and honesty," Cisco Aguilar, the Nevada Athletic Commission chairman told the Daily News Monday. "The commission at some point will have to discuss (Pacquiao's medical questionnaire). I've got to run through the process with the (Nevada) Attorney General (Adam Laxalt). But they do sign that document under the penalty of perjury."

On the other hand, Mayweather thought Pacquiao's injured right should was never an issue in the fight, saying had speed and power in both hands but he was just too good to negate all of these through his superb defensive skills.

"Excuses, excuses, excuses," Mayweather said of Pacquiao. "He was fast," Mayweather insists in quotes released Thursday. "His left hand was fast. His right hand was fast and he was throwing them both fast and strong."

There's No Money in Second Match with Pacman

The fight, which was considered the most lucrative in sport's history, lived up to the hype financially as reports indicated the pay-per-view buys have reportedly reached the 5 million barrier, potentially jacking up Mayweather's paycheck to $250 million and Pacquiao to around $150 million.

But the dull outcome of their fight prompted boxing fans to cry foul, as they think they didn't get as much as the $100 pay-per-view fee they paid for the bout marketed as the biggest in this generation. Many boxing pundits even stressed the Mayweather-Pacquiao fight made the situation even worse for boxing, which were slowly losing ground to Mixed Martial Arts in combative sport entertainment.

Mayweather, who claimed his last pro fight will be in September, may be thinking there's no more money in a rematch with Pacquiao, and easy match against Amir Khan or a low-tier boxer is necessary to secure his unblemished career before he closes the curtain on his legendary career for good.