The father-of-eight had previously described how he was walking down a Brooklyn street aged seven years old, when an 'old man... snatched me off the street.'
He was 'bullied' and 'sexually abused' before he eventually managed to run away. Tyson never saw his abuser again and never told anyone, including the police, about the abuse for decades for fear he would be judged.
On Monday, he opened up about the incident to ESPN's Jeremy Schapp, and how he has come to terms with the abuse.
When asked why he so rarely mentioned the incident, he replied: 'It was no one's business to know, people just don't talk about it because to some people they believe it's demasculating them.
'I learned that it doesn't make you any less of a man because it happened,' he said.
Despite himself, the former boxing champ said he 'probably' felt shame over what happened to him.
But he said the incident had made him the man he was today.
'It made me have to be tough for the world I lived in,' he said.
Tyson first publicly revealed he was sexually abused in an interview on SiriusXM's Opie Radio show in 2014.
The 51-year-old described how the 'old man' had 'snatched me off the street.'
'I was a little kid...[he was an] old man,' he said. '[He] bullied me, sexually abused me and stuff. Never seen him again.'
He managed to escape, and claimed it was a one-time incident.
'I just went on with my life,' he said.
When asked by the interviewer whether the event changed him, Tyson answered: 'I don't know if it did or not.'
He added: 'I don't always remember, but maybe I do but I don't. I'm not ashamed or embarrassed by it.'
Tyson, nicknamed 'The Baddest Man On The Planet,' was undisputed world heavyweight boxing champion in the 1980s but in 1992 he was convicted of raping teenage beauty queen Desiree Washington in Indiana and served three years in prison.
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