LONDON, ENGLAND - MARCH 03 : A woman straightens Muhammad Ali paintings and photographs during a press call at 'I Am The Greatest: Muhammad Ali at The O2, on March 3, 2016 in London, England. The exhibition explores Muhammad Alis life and rise from humble beginnings in Kentucky where he was known as The Louisville Lip, to becoming the three times heavyweight champion of the World and known as The Greatest. The exhibition opens Friday March 4, 2016 and runs to August 31, 2016. (Photo by Vickie Flores/Anadolu Agency/Getty Images)
