Former heavyweight champion Mike Tyson is admitting he was high on drugs during several fights during his boxing career. He also outlined how he hid it in his autobiography Undisputed Truth.

The 47-year-old Tyson, who has since retired, wrote “I was a full-blown cokehead,” admitting to using the drug ahead of his 2004 match against Danny Williams and 2000 fight against Lou Savarese.

During his fight against Savarese in Glasgow, he said he used a fake penis with someone’s else’s urine to pass the drug test, The Telegraph reports. He referred to it as a “whizzer.”

Tyson also wrote in the book that the reason he was fined $200,00 for testing positive for marijuana after his fight against Andrew Golata is because he couldn’t get his whizzer from his teammate in time for the drug test.

The famed boxer admitted to being high at a press conference during which he got into a fight with Lennox Lewis in 2002. He told a reporter who thought Tyson should be put into a straitjacket, “Come here and tell me that, and I'll [expletive] you in your [expletive], you punk white boy ... You scared, coward, you're not man enough to [expletive] with me, you can't last two minutes in my world,” Fox News reports.

Mike Tyson: Undisputed Truth was published on Tuesday and written by Larry Sloman.

image: Wikimedia Commons