However, in 1981, he launched a boxing comeback.
O'Sullivan also shot footage on former WBA junior welterweight champion Vivian Harris' boxing comeback for a syndicated reality series.
With it, Pryor was perhaps exorcising the past so he could step into a future that held his boxing comeback.
He attempted boxing comebacks twice, his last fight being held in 1995.
The conventional wisdom was that boxing comebacks like Sugar Ray Leonard's were doomed to failure.
Eklund, portrayed by Christian Bale, is shown smoking crack and being high throughout, thinking that the HBO camera crew are filming him making a boxing comeback.
After his boxing comeback, Braddock returned the welfare money he had received and made frequent donations to various Catholic Worker Houses, including feeding homeless guests with his family.
He participated in a number of movies and television series, before deciding to launch a boxing comeback at the age of 48, in 1997.
Tyson's brief and mumbled greetings may be a precursor of his muted boxing comeback.
Now, though, the fighter from Wanaque, N.J., is back and hoping to wrest more than personal satisfaction from his boxing comeback.