Mike Tyson claims to have gotten a prison officer pregnant when he was in jail.

The 45-year-old retired boxer - who served three years of a six-year prison sentence for rape in 1992 and returned to jail for nine months in 1998 following a road rage conviction - revealed the woman in question did not have the child, but he refused to elaborate on any other details.

"I didn't talk about getting a prison official pregnant. Oh yeah. In prison, stuff happens. But she had no baby," he said when asked by ESPN host Rick Reilly what he has left out of his one-man show Mike Tyson: Undisputed Truth.

Former heavyweight champion Mike - who has eight children - also discussed the many drugs he used to take, describing the substances, both legal and prescription, as his "little friends."

"I just liked morphine, but I had to take a lot of it because it didn't stay in your system for a long time. And I'd have my cocaine, and I had my marijuana, and I had my Cialis and Viagra and my little friends all sitting there," he said.