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After a workout at his training camp, Muhammad Ali holds up seven fingers to signify the number of rounds in which he would defeat his next opponent (Earnie Shavers), Deer Lake, Pennsylvania, September 22, 1977. (Photo by Allan Tannenbaum/Getty Images)

After a workout at his training camp, Muhammad Ali holds up seven fingers to signify the number of rounds in which he would defeat his next opponent (Earnie Shavers), Deer Lake, Pennsylvania, September 22, 1977. (Photo by Allan Tannenbaum/Getty Images)