April 28, 1961: Braves' Warren Spahn pitches second career no-hitter – Society for American Baseball Research
At 39, Warren Spahn tosses no-hitter
Warren Spahn – Player Biography - This Day In Baseball
Forty-Year-Old Warren Spahn Throws a No-Hitter!
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A study in No. 21, Warren Spahn - Battery Power
Warren Spahn Baseball Stats by Baseball Almanac
Forty-Year-Old Warren Spahn Throws a No-Hitter!
Forty-Year-Old Warren Spahn Throws a No-Hitter!
Warren Spahn Baseball Stats by Baseball Almanac
Forty-Year-Old Warren Spahn Throws a No-Hitter!
Warren Spahn: The Greatest Left-handed MLB Pitcher