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UNITED KINGDOM – AUGUST 06:  The American boxer Muhammad ALI kept his heavyweight world champion title by beating the British boxer Brian LONDON in London, on the third round.  (Photo by Keystone-France/Gamma-Keystone via Getty Images)

Muhammad Ali was born Cassius Clay on January 17, 1942 and changed his name to Muhammad Ali after converting to the Muslim faith in 1964.

Muhammad Ali turns 70 today, and to celebrate the life of the Louisville Lip.  Click here for some of his greatest quotes.

Read more: http://www.mirror.co.uk/news