19 December 2013 Last updated at 12:42 GMT

Mike Tyson pays tribute to 'father figure' Cus D'Amato

Mike Tyson pays tribute to the "extraordinary impact" that former trainer and manager Cus D'Amato had on his career.

Tyson says D'Amato "adopted me" and was a "father figure" as he became the youngest boxer to win the WBC, WBA and IBF heavyweight titles in 1987 at the age of 20.

You can hear the full interview with Mike Tyson by downloading the 5 live Sport podcast.