Conor McGregor Floyd Mayweather
Conor McGregor, pictured during the Floyd Mayweather Jr. v Conor McGregor World Press Tour at SSE Arena on July 14, 2017 in London, England, isn't nearly as much of a betting underdog as he once was. Getty Images

It didn’t seem possible, but Conor McGregor seems to be gaining even more confidence as he goes through training camp for his fight with Floyd Mayweather. The biggest name in the UFC is getting ready for his first-ever professional boxing match, and he continues to talk trash on social media.

McGregor had been taking jabs at Mayweather, culminating with their four-day press tour. Now, he’s taking aim at his critics, of whom there are many and believe the Irish fighter has no chance to defeat the greatest boxer of his generation.

READ: Can Conor McGregor Knock Floyd Mayweather Out?

Mike Tyson became one of the most recent critics of McGregor, calling him a “dumbass” for accepting the fight in an interview with “Pardon My Take.” McGregor heard about the comments and fired back, reiterating that he would pull off the upset.


You are all going to eat your words for the rest of your days, while I eat lobster for the rest of mine.

A post shared by Conor McGregor Official (@thenotoriousmma) on

McGregor displays more confidence than just about anyone in combat sports. He had no doubt he was beating Jose Aldo for the UFC featherweight championship two years ago when Aldo had been the only fighter to hold the 145-pound belt. McGregor displayed the same level of confidence before beating Nate Diaz at 170 pounds, and there was no doubt in his mind that he’d win the UFC lightweight championship less than three months later.

Even though he’s entering a whole new sport, McGregor believes he’ll give Mayweather the toughest test of his career.

“He's going to feel like he's wrestling a bear when he holds for the first time. No matter what skill set you possess, you grab and hold. When he tries to grab and hold me he's not just grabbing and holding a boxer. He's grabbing and holding a serious specimen in the clinch. He just does not understand what he's in for.”

The betting odds are heavily in Mayweather’s favor, and just about every expert is picking him to win by either knockout or decision. The public, however, is giving McGregor an even better chance than some of Mayweather’s recent opponents.

McGregor is down to a +375 underdog at, while Mayweather has -550 betting odds. Andre Berto was a bigger underdog when he faced Mayweather in his last fight, and the world’s best boxers usually have better odds than Mayweather does for the Aug. 26 bout. Manny Pacquiao was a -600 favorite against Joe Horn on July 1, while Gennady Golovkin had even better odds when he fought Daniel Jacobs in March.

READ: Betting Odds Favor Knockout For Mayweather Over McGregor

McGregor hasn’t simply guaranteed a victory over Mayweather. He’s promised to knock Mayweather out, and do so before the end of the fourth round. Scoring even one knockdown against Mayweather would be an incredible feat for any professional boxer. Watching McGregor actually knock out Mayweather would be one of the greatest accomplishments in sports history.

Mayweather has continued to say McGregor has a chance to win, though his modesty might just be an effort to sell the pay-per-view. McGregor is also trying to make this the biggest fight of all time, though he seems to truly think he’ll knock Mayweather out and stun the boxing world.