He has twice fought in hugely lucrative exhibition bouts since then, beating Japanese kickboxer Tenshin Nasukawa in 2018 before Sunday’s bout against Paul.
In his post-fight interview, Paul left the door open for a second fight with the boxing legend.
His younger brother Jake Paul, who will take on former UFC champion Tyron Woodley in August, was involved in a wild brawl with Mayweather last month with the 24-year-old also eager to fight the former world champion.
Mayweather himself has also teased the possibility of a second fight with McGregor, describing a rematch with the Dubliner as an ‘easy’ fight last week.
But the 44-year-old has now suggested he will hang up his gloves for good.
‘Will I make a comeback? Absolutely not,’ Mayweather said in his post-fight press conference.
‘I have retired from the sport of boxing. I probably won’t do an exhibition again either.
‘If he would have fought more, it wouldn’t have lasted eight rounds. I am just blessed to build a legacy and build a fortune from it.
‘I have made some smart investments and everything is paid for. We did what we had to do tonight.’
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