Mayweather has flirted with speculation of a sensational switch after posting videos of himself entering the cage.
Critics, fans and the bookies have deemed McGregor as the huge favourite should the opportunity prosper.
However, former Mayweather opponent Ricky Hatton doesn’t expect it to take place.
“I can’t take the fight seriously, to be honest with you. I don’t blame Floyd or Conor for the last fight, they got well paid for it and I probably would have done the same, but boxing should be stepping in a different direction,” Hatton exclusively told World Boxing News.
“People have been knocking the last fight, so god knows what they’re going be like if they meet in the octagon.
“I just don’t see Floyd shoulder moving in that direction himself,” he added.
Mayweather and UFC’s star fighter broke records as they competed in one of boxing’s most lucrative bouts in August last year.
Many panned the fight, scoffing the Irishman’s attempt of defeating ‘The Best Ever,’ despite McGregor landing more punches than Mayweather’s arch-rival Manny Pacquiao, the fight which headed off ‘MayMac’s’ record-breaking attempts.
Hatton wasn’t convinced by the outing after hearing a mixed reception during the build-up.
“There were a lot of different views. A lot people said Floyd was taking it easy and the minute he put the foot on the gas he won it.
“But then again, people who were ringside were telling me, Conor was doing well and causing lots of problems.
“They said Mayweather looked old and they were sitting two rows away from the fight.
“At the end of the day, it’s who you believe I guess,” said Hatton.
Joe Hewlett is lead writer for World Boxing News. Follow Joe on Twitter @Hewlett95