Training with the Champ: Rare photos of Ali's workouts

Training with the Champ: Rare photos of Ali's workouts

Neil Leifer/SI

Chris Smith/Popperfoto/Getty Images

Neil Leifer/SI

Neil Leifer/SI

Neil Leifer/SI

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Neil Leifer/SI

Neil Leifer/SI

Neil Leifer/SI

Neil Leifer/SI

Neil Leifer/SI

Neil Leifer/SI

Tony Triolo/SI

Tony Triolo/SI

Tony Triolo/SI

Tony Triolo/SI

Tony Triolo/SI

Neil Leifer/SI

Chris Smith/Popperfoto/Getty Images

Neil Leifer/SI

Tony Triolo/SI

Fred Kaplan/SI

Neil Leifer/SI

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Chris Smith/Popperfoto/Getty Images

Chris Smith/Popperfoto/Getty Images

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Chris Smith/Popperfoto/Getty Images

Chris Smith/Popperfoto/Getty Images

Chris Smith/Popperfoto/Getty Images

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Neil Leifer/SI