'Undisputed Truth' is the autobiography of which boxer?

"Undisputed Truth" is the autobiography of the American boxer Mike Tyson, written with Larry Sloman and published in 2013.

About the book:

• It describes Tyson's difficult childhood in Brooklyn, New York, where he was involved in crime and was arrested many times as a boy.
• It explains how his trainer and guardian, Cus D'Amato, took him in and turned him into a disciplined boxer.
• It covers his rapid rise, his fame, his troubles outside the ring, his time in prison (1992-1995), and the infamous 1997 fight in which he bit Evander Holyfield's ear and was disqualified.
• It also discusses his struggles with addiction and his efforts to rebuild his life.
• The book grew out of his one-man stage show, also called "Undisputed Truth".

About Mike Tyson:

• He was born in 1966.
• In November 1986, at the age of 20, he became the youngest heavyweight boxing champion in history, by defeating Trevor Berbick.
• He was known as "Iron Mike" and "Kid Dynamite" for his ferocious punching power.
• He became the undisputed heavyweight champion, holding the WBA, WBC and IBF titles at the same time (1987).
• He was inducted into the International Boxing Hall of Fame in 2011.

Autobiographies of other boxers:

• Muhammad Ali: "The Greatest: My Own Story" (1975) and "The Soul of a Butterfly" (2004, with his daughter Hana Ali).
• George Foreman: "By George" (1995).
• Indian boxers: Mary Kom's autobiography is "Unbreakable".

Muhammad Ali facts:

• He won Olympic gold in 1960 (Rome) as Cassius Clay, and is famous for the line "Float like a butterfly, sting like a bee".
• His famous fights include the "Rumble in the Jungle" (1974) against George Foreman and the "Thrilla in Manila" (1975) against Joe Frazier.

Why not the other options?

• ✗Muhammad Ali's autobiographies are "The Greatest" and "The Soul of a Butterfly".
• ✗Floyd Mayweather Jr. is an unbeaten boxer but did not write "Undisputed Truth".
• ✗George Foreman's autobiography is "By George".