While nothing has been confirmed, both superstars have made their intentions clear: they want this fight to happen. This wouldn't just be any old fight, however. Mayweather is considered one of the greatest pound-for-pound boxers of his time, finishing his career with 50 wins and 0 losses.
McGregor is no bum himself, but while he doesn't boast a spotless win/loss record like Mayweather's, McGregor is the hottest fighter in the world right now and doesn't shy away from opportunities to put himself up against the best.
Neither fighter is yet to put pen to paper, but both have been content running their mouths in the media and tearing shreds off each other. While there's clearly not enough room in this town for both superstars, that doesn't mean there's not a level of respect between the two fighters.
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Mayweather confirmed that in his recent comments to TMZ Sports, even somewhat praising McGregor.
"I can't sit right here and knock Conor McGregor," Mayweather said. "I've been off for a couple of years, and I'm 40 years old now, so I'm a lot older, and he's in his 20s."
Floyd was even kind enough to label McGregor a "heavy hitter."
"So, we'll just see," said Mayweather.
Is this an admission from Mayweather that he's not as certain about his chances of winning the fight as he's been letting on? Part of Mayweather's allure is that he's undefeated in professional boxing – would the aging superstar really put his undefeated streak on the line against McGregor?
We'll never truly know the answers to these questions until the two sign on the dotted line. But just how long will we have to wait for these two to lock horns?
"The world wasn't built in a day," Mayweather said. "Everything can't happen when we want it to happen."
The world continues to wait, Floyd. Speed it up a little.