Mayweather recently took to social media to request eight-ounce gloves for his upcoming boxing showdown with the UFC light heavyweight champion, and next week the Nevada State Athletic Commission will decide on the matter.
On Friday, McGregor warned that Mayweather better hope the commission votes no.
"If we're eight ounces, I'm struggling to give him two rounds, and that's the God's honest truth," McGregor said at his media workout in Las Vegas. "The only reason I maybe give him two rounds is because in this game the referee stops me from pounding his head into the canvas, and he has 10 seconds to recover. That's the only reason why he might get to the second round."
McGregor (21-3 MMA, 9-1 UFC) and Mayweather (49-0 boxing) face off on Aug. 26 at T-Mobile Arena in Las Vegas in a pay-per-view event expected to be the most lucrative prize fight of all time.
The Nevada commission typically mandates 10-ounce gloves be worn in boxing bouts at 147 pounds or heavier. Mayweather and McGregor is taking place at 154 pounds. In an email to MMAjunkie, NSAC Executive Director Bob Bennett said the fighters and their representatives will have the opportunity to make the case for eight-ounce gloves.
Lighter gloves certainly would seem to provide a slight edge for McGregor, who has never boxed professionally and is used to fighting MMA with four-ounce gloves.
With or without lighter gloves, McGregor remains as confident as ever - and that's after observing Mayweather during his own media workout one day earlier.
"I see a beaten man in his eyes, in his body language, in everything he does," McGregor said.