This file photo taken on May 24, 2011 shows Legendary heavyweight boxing champion Muhammad Ali (C) is greeted after a news conference at the National Press Club in Washington. Yuri Gripas / AFP
In this July 17, 1975, file photo, sports promoter Don King stands between Muhammad Ali, left, the heavyweight champion, and Joe Frazier in New York. AP Photo file
In this October 1, 1975, file photo, spray flies from the head of challenger Joe Frazier as heavyweight champion Muhammad Ali connects with a right in the ninth round of their title fight in Manila, Philippines. Mitsunori Chigita / AP photo
WBC and WIBA super middleweight champion Laila Ali is kissed by her father, boxing great Muhammad Ali, at the MCI Center in Washington in this June 11, 2005 file photo. Jason Reed / Reuters
In this September 18, 1975, file photo, Philippines President Ferdinand Marcos, left, applauds as challenger Joe Frazier, right, makes some remarks about world champion Muhammad Ali, second from left, during their call on Marcos at the Malacanang Palace in Manila, Philippines. Jess Tan / AP photo
In this September 17, 1974, file photo, Muhammad Ali is greeted in downtown Kinshasa, Zaire. Ali is in Zaire to fight George Foreman. AP Photo
Cassius Clay (who later became known as Muhammad Ali) predicts that he will in the fifth round before his fight with Henry Cooper at Wembley Stadium in London, Britain June 18, 1963. Action Images / MSI / File Photo
A smiling Muhammad Ali shows his fist to reporters during an impromptu news conference in Mexico City in this July 9, 1987 file photo. Jorge Nunez / Reuters
US boxing great Muhammad Ali poses during the Crystal Award ceremony at the World Economic Forum (WEF) in Davos, Switzerland, in this January 28, 2006 file photo. Andreas Meier / Reuters
