Muhammad Ali redefined heavyweight boxing—he broke every rule about how big men should fight. Across 21 years as a professional, Ali won 56 fights (37 by knockout) and lost only 5. Ali turned fights ...

When Muhammad Ali knocked down Sonny Liston on May 25, 1965, a 22-year-old photographer named Neil Leifer was ringside. Decades later, the image he captured still has our attention. By Bill Shapiro ...

How the sports legend and civil rights icon made decisions throughout his career to leave a lasting impact on the world. Muhammad Ali, born Cassius Marcellus Clay Jr, rose from a poor family in ...