Muhammad Ali was ranked third most successful businessman of the 20th century by an ESPN biography program.
Muhammad Ali . He was ranked as the greatest athlete of the 20th century by Sports Illustrated , the Sports Personality of the Century by the BBC , and the third greatest athlete of the 20th century by ESPN SportsCentury . SportsCentury is an ESPN biography program that reviews the people and athletic events that defined sports in North America throughout the 20th and 21st centuries .