Most experts say McGregor, who has never fought in a professional boxing contest, has next to no chance against Mayweather, the 40-year-old former welterweight star who retired in 2015 with a 49-0 record.
Mayweather, meanwhile, made $32 million in his most recent fight, against Andre Berto. "I think he's got it easy", said Carter. The 40-year-old is the heavy favorite to win the bout and walk away with a flawless 50-0 professional record.
As you may assume, the long hold off for this fight was about money.
The PPV, which will cost $100, is scheduled to begin at 9pm ET, meaning the Mayweather vs McGregor bout might not start until midnight on the East coast, so plan accordingly.
"You guys will see the betting ticket, don't worry", he said. "Fighting wins fight", Mayweather said, again predicting a KO win. "I see a man afraid".
Across town in a similar industrial estate the idea of Floyd Mayweather stepping out of retirement to defend his unblemished record against the pride of MMA is the talk of Mikey's Boxing Gym.
"I like McGregor but he's out of his sport", said Trudeau as he prepared to board a bus after an impromptu stop Friday afternoon at Dairee Delite on King George Road.
Malignaggi and McGregor's feud continued this week when the pair clashed in Las Vegas.
Mayweather vs. McGregor will take place tomorrow night from the T-Mobile Arena in Las Vegas, Nevada.
Mayweather was unflustered by McGregor or the jeers raining down on him from a beer and testosterone fuelled crowd of mostly UFC fans. He will be making his professional boxing debut against Mayweather, one of the greatest boxers in history.
Mayweather, one of the best boxers in history who has a ideal slip of 49-0-0, 26 K.
While the fight will go ahead even if one of the fighters misses weight, they face a fine and losing a huge cut - likely millions of dollars - of the purse.