Through the lens: Muhammad Ali

A portrait of the greatest boxer who ever lived.
1 of 13
Len Amato, Laila Ali, Muhammad Ali and Donald Lassere appear as HBO Films and the Muhammad Ali Center co-host the U.S. Premiere of 'Muhammad Ali's Greatest Fight' at Muhammad Ali Center on October 2, 2013 in Louisville, Kentucky. (Getty Images)
2 of 13
Muhammad Ali onstage during the Michael J. Fox Foundation's 2010 Benefit 'A Funny Thing Happened on the Way to Cure Parkinson's' at The Waldorf=Astoria on November 13, 2010 in New York City. (Getty Images)
3 of 13
Muhammad Ali during training for his fight with Al 'Blue' Lewis held in Dublin, Republic of Ireland in 1972. (Getty Images)
4 of 13
American heavyweight boxer Muhammad Ali throws bare-handed punches in the ring while in training for his fight against Brian London, London, England, August 1966. (Getty Images)
5 of 13
US boxer Cassius Clay at his West End Hotel during his stay in London to fight Henry Cooper. (Getty Images)
6 of 13
US boxer Muhammad Ali, current heavyweight champion, waves on the steps going up to an aeroplane at London Airport. (Getty Images)
7 of 13
World heavyweight boxing champion Muhammad Ali in training at the Royal Artillery Gymnasium in London for his upcoming fight with British champion Henry Cooper, against whom he must defend his title. (Getty Images)
8 of 13
Cassius Clay (Muhammad Ali) puts down challenger Floyd Patterson during the World Heavyweight Championship fight. Clay won the fight with a technical knockout in the 12th round. Mandatory Credit: Allsport Hulton/Archive
9 of 13
World heavyweight boxing champion Muhammad Ali enjoys supper in a restaurant. (Getty Images)
10 of 13
Cassius Clay, who later changed his name to Muhammad Ali, the first boxer to win the world heavyweight title three times, and who called himself 'The Greatest'. (Getty Images)
11 of 13
Cassius Clay (now Muhammad Ali) in action against Sonny Liston during their heavyweight title fight at Miami Beach, Florida. Clay won the contest, becoming world champion, when Liston failed to come out at the start of the seventh round. (Getty Images)
12 of 13
American Heavyweight boxer Cassius Clay (later Muhammad Ali) lying on his hotel bed in London. He holds up five fingers in a prediction of how many rounds it will take him to knock out British boxer Henry Cooper. (Getty Images)
13 of 13
US President Bill Clinton leans on former world boxing heavyweight champion Muhammad Ali (R) at the National Italian American Foundation (NIAF) 25th Anniversary Awards Gala Dinner at a Washington DC hotel 28 October, 2000. Ali and his trainer Angelo Dundee were honored with the NIAF One America award at the gathering. Founded in 1975 as a non-profit, non-partisan foundation, the NIAF works to preserve and protect Italian American heritage and culture. (AFP/Getty Images)