The boxing world has paid tribute to legendary heavyweight champion Muhammad Ali, who is 65 today.
Britain's former heavyweight world champion Lennox Lewis told the BBC's Sportsweek programme: "He's definitely the greatest.
"He's the man I watched on TV and said 'I want to be great, just like him'.
"He is my hero in one sense. Me and my mother used to watch him on the TV and we were always excited about his fights because you never knew what to expect."
Ali was the first man to win the heavyweight title of the world three times and won the BBC's Sports Personality of the Century award in 1999.