NEW YORK - DECEMBER 07: Heavyweight boxer Muhammad Ali trains for his fight against Oscar Bonavena on December 7, 1970 in New York, U.S.A. (Photo by Anwar Hussein/Getty Images)
NEW YORK - DECEMBER 07: Heavyweight boxer Muhammad Ali trains for his fight against Oscar Bonavena on December 7, 1970 in New York, U.S.A. (Photo by Anwar Hussein/Getty Images)