Retired boxer Mike Tyson has revealed in his autobiography that he was a "full-blown coke-head" who used drugs throughout his career, as well as tricking drug-testers with a fake penis.
The former world champion pulls no punches in his book Undisputed Truth, released this week in the United States, saying he would often use drugs right up until a bout.
Tyson, who has starred in films since retiring from the ring, talks openly about his use of narcotics - including taking them right up until his fight with Danny Williams in Louisville in 2004.
In his explosive book he also reveals he used a "whizzer" - a fake penis filled with urine - to trick drug testers in Glasgow after his 2000 fight with Lou Savarese at Hampden Park.
He was later fined for testing positive for marijuana when he fought Andrew Golota in Detroit - something he blamed on his inability to get his fake penis in time.
In 2002, when he attacked Lennox Lewis at a press conference, he was also on drugs: "I lost my mind. I looked over and wanted to hit the motherf*****.
"I'm a bad guy, I did a lot of bad things and I want to be forgiven. I want to change my life."
When he fought Frank Bruno in 1989, he believes he was in such a bad way that his English opponent should have "kicked my ass."
The revelations don't stop there, either.
He goes on to add how he had an extreme sexual appetite for women - he spent three years in jail for rape from '92-'95 - claiming the "floodgates opened once I started banging women."
He adds: "Short, tall, sophisticated, ugly, high society, street girls; my criteria was breathing."
However, Tyson - who claims he was once suicidal and took so many drugs some nights he wondered whether he'd wake up in the morning - has expressed his desire to change, starting with sobriety.
"I want to live my life sober. I don't want to die. I'm on the verge of dying because I'm a vicious alcoholic."
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