Mike Tyson found fame as the youngest heavyweight world champion in history . He was later served with a one-year boxing ban . The boxer now says : ` ` I did n't know the person I was back then '' Tyson , who spent time in prison , says being responsible is now his biggest fight . At 47 , Tyson hopes to use his life force to help young boxers .
Mike Tyson found fame as the youngest heavyweight world champion in history . The boxer now says : ` ` I did n't know the person I was back then '' Tyson , who spent time in prison , says being responsible is now his biggest fight . At 47 , Tyson hopes to use his life force to help young boxers .