Muhammad Ali

Muhammad Ali's legacy is not confined to the boxing ring. While his athletic prowess ranks him among the greatest athletes the world has ever seen, the boxer was able to transcend sport by greatly influencing culture, politics, and race relations.

A new retrospective video from HBO Sports provides context to Ali's lasting legacy. The short film, narrated by Liev Schreiber, captures everything from Ali's rise in boxing, to his poetic personality, to his conversion to Islam, and to his enduring presence as a champion of social justice.

He was a polarizing figure to many, but a captivating figure to everyone.

As Schreiber points out, there's only been one athlete who called himself "The Greatest" -- and was right about it.

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-- Muhammad Ali Responds To Donald Trump
-- Watch Muhammad Ali KO Sonny Liston In First Round Of Rematch