And his recent series of exhibition bouts against stars of the boxing, MMA and social media world have not helped dispel the claims.
Even British promoter Hearn has questioned Mayweather’s fortune and decision to carry on boxing.
He said on GRM Daily : “I don’t think he’s got the money he says, that’s what I think.
“I don’t think he needs the money but you know when you’ve got that lifestyle, when he’s spending what he spending.”
Mayweather, 47, officially retired in 2017 after beating UFC superstar Conor McGregor, 36, in a crossover bout believed to have earned him £300m alone.
But he has continued to box in exhibitions since, most recently last June against the grandson of notorious crime boss John Gotti.
He said: “Am I doing it for the money? Absolutely not. I’m doing it because this is what I want to do. It’s not like I’m hurting.
“And the people are enjoying it, my team is enjoying it and it’s good to be able to travel to different places and train and shake hands with different people from all walks of life.”
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