The other ace Jewish pitcher who wouldn't play on Yom Kippur
Hiatus history lesson: Koufax forgoes World Series opener for Yom Kippur
Sandy Koufax's best stats and accomplishments
1965 World Series: Sandy Koufax's visit to St. Paul synagogue a matter of faith – Twin Cities
Koufax's Yom Kippur Decision, 50 Years Later - Tablet Magazine
While Koufax Is Rightly Lauded, Yom Kippur Example Was Set by Hank Greenberg (Video) • Jewish Breaking News
Fifty years later, Sandy Koufax still stirs up emotions of Jewish baseball fans, Los Angeles Dodgers
Why Sandy Koufax sitting out a World Series game still matters 50 years later - Jewish Press of Tampa
Longing for a shot at the majors, but sitting out the Sabbath: Elie Kligman can do anything on a baseball field, but his strict observance of the Jewish sabbath complicates his future
Sandy Koufax: A Lefty's Legacy: 9780061779008: Leavy, Jane: Books
Sandy Koufax: The Yom Kippur decision, IJN
50 Years since Sandy turned Dandy with Yom Kippur decision
Was Baseball Great Hank Greenberg Even Braver Than Sandy Koufax? – The Forward