Mike Tyson has revealed he left prison $375million (£290m) richer after being jailed in 1992 as his blockbuster fight with Jake Paul approaches.
The heavyweight was convicted of rape and served three years at the Indiana Youth Center, having previously been sentenced to six years and four years of probation.
After being released in 1995, Tyson became heavyweight world champion the following year due to help from Don King.
And the 58-year-old, speaking to Andre Ward, has now revealed that King helped boost his earnings while he was behind bars.
Mike Tyson has revealed he left prison $375million (£290m) richer after being jailed in 1992 as his blockbuster fight with Jake Paul approaches
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Tyson says he had £11.5m to his name when he was sentenced but, with the brand and sponsorship deals still coming in, he was able to boost his earnings substantially.
He said: "When I went to prison I had $15million (£11.5m).
"When I came out I must have had $300-400million (£290m-£307m). I'm in there signing contracts in prison."
After coming out of prison 31 years ago, Tyson took part in two comeback fights before beating Frank Bruno for the WBC title in 1996.
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However, though he's financially secure now, that wasn't always the case.
In 2003, after losing to Evander Holyfield and Lennox Lewis, Tyson filed for bankruptcy.
His career as a professional boxer ended in 2005 after losses to Danny Williams and Kevin McBride.
But Tyson has rebuilt his wealth in the time since, with the veteran starting a lucrative cannabis business during his time away from the ring.
Mike Tyson is currently preparing for his boxing comeback with the 58-year-old set to fight Jake Paul later this month
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"Anybody with the [idea] that I’m a nice person is gonna be disappointed. I’m just not.
"I don’t make people happy for no reason, I’m just who I am.
"I’m not trying to gain friends, that’s basically what I’m saying. I don’t want to make friends with you, I don’t care if you put me on your yacht, I don’t give a f**k.
"I’m not gonna ever be nice to nobody; I’ll be kind, but never nice.”