William Nack

Before he died in April, longtime SI scribe William Nack was working on a memoir that included his recollections of the race that inspired his passion for horse racing: the 1958 Kentucky Derby.

More than two decades after they last met in the ring, Joe Frazier is still taking shots at Muhammad Ali, but this time it's a war of words.

From the SI Vault, William Nack’s look at Cassius Clay’s youth: At 50, Muhammad Ali is a much-admired figure, just as he was in his formative years as a fun-loving but purposeful youth in Louisville.

From the SI Vault: William Nack's story of the stretch in May 1947 when Jackie Robinson showed he could play major league baseball, paving the way for other African-Americans to follow.

The latest SI 60 is "Pure Heart," William Nack's 1990 story on the life and death of Secretariat.

The latest SI 60 selection is "A Name On The Wall," in which William Nack chronicles the life and death of Bob Kalsu, an NFL player who was the only athlete in a major sports league to die in Vietnam. 

In this SI 60 story, William Nack retraces the sad life and tragic death of one-time heavyweight champion Sonny Liston.