Muhammad Ali's greatest moments, in photos — mashable.com

His fans knew it and he knew it. Muhammad Ali called himself the greatest, his fans called him #GOAT. The 74-year-old boxing champ who died Friday after being admitted to a Phoenix-area hospital for respiratory issues was never shy about the label. From his 1960 Olympic gold medal to his 1964 World Heavyweight Champion win against Sonny Liston to his 1996 lighting of the Olympic torch, he symbolized greatness throughout his career. 

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