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The winners of the 1960 Olympic medals for light heavyweight boxing on the winners' podium at Rome: Cassius Clay (now Muhammad Ali) (C), gold; Zbigniew Pietrzykowski of Poland (R), silver; and Giulio Saraudi (Italy) and Anthony Madigan (Australia), joint bronze. (Photo by Central Press/Getty Images)

The winners of the 1960 Olympic medals for light heavyweight boxing on the winners' podium at Rome: Cassius Clay (now Muhammad Ali) (C), gold; Zbigniew Pietrzykowski of Poland (R), silver; and Giulio Saraudi (Italy) and Anthony Madigan (Australia), joint bronze.   (Photo by Central Press/Getty Images)

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US President George W. Bush (R) presents the Presidential Medal of Freedom, the nation's highest civil award,to boxer Muhammad Ali in the East Room of the White House 09 November 2005 in Washington, DC. The medal is presented to those who have made contributions to national security, world peace, or culture.It was Ali's first public appearance in five months. The last was also in Washington when he watched his daughter Leila Ali fight in a women's boxing bout. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)

US President George W. Bush (R) presents the Presidential Medal of Freedom, the nation's highest civil award,to boxer Muhammad Ali
in the East Room of the White House 09 November 2005 in Washington, DC. The medal is presented to those who have made contributions to national security, world peace, or culture.It was Ali's first public appearance in five months. The last was also in Washington when he watched his daughter Leila Ali fight in a women's boxing bout. AFP PHOTO/Mandel NGAN        (Photo credit should read MANDEL NGAN/AFP/Getty Images)

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KABUL, AFGHANISTAN - NOVEMBER 18: Former world heavyweight boxing champion Muhammad Ali (L) gives a kiss to a Afghan students during his visit to Karte Sei High school for Girls November18, 2002 in Kabul, Afghanistan. Ali is in Kabul on a three-day mission as a special UN guest as the "U.N. Messenger of Peace." (Photo by Paula Bronstein/UNICEF/Getty Images)

KABUL, AFGHANISTAN - NOVEMBER 18:  Former world heavyweight boxing champion Muhammad Ali (L) gives a kiss to a Afghan students during his visit to Karte Sei High school for Girls November18, 2002 in Kabul, Afghanistan. Ali is in Kabul on a three-day mission as a special UN guest as the "U.N. Messenger of Peace."  (Photo by Paula Bronstein/UNICEF/Getty Images)

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Portrait of American heavyweight boxer Muhammad Ali after a workout at his training camp, Deer Lake, Pennsylvania, September 22, 1977. (Photo by Allan Tannenbaum/Getty Images)

Portrait of American heavyweight boxer Muhammad Ali after a workout at his training camp, Deer Lake, Pennsylvania, September 22, 1977. (Photo by Allan Tannenbaum/Getty Images)