Muhammad Ali was ranked third greatest athlete of the 20th century by an ESPN biography program.
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 .	Sports Illustrated	Sports Illustrated	Sports Personality of the Century	BBC Sports Personality of the Year#Sports Personality of the Century Award	ESPN	ESPN	SportsCentury	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 .	ESPN	ESPN
