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Ali, named 'Fighter of the Year' by Ring magazine more times than any other boxer in history, and one of Time magazine's 100 Heroes of the 20th century, remains a people's champion.
Once denied an autograph by his idol Sugar Ray Robinson ('Hello, kid, how ya doin'? I ain't got time'), he has never ever turned down an autograph request.
One of the most recognizable human beings on the planet, there will surely never be someone like him again.