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MLB Sandy Koufax Baseballs, Sandy Koufax MLB Base Balls
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Northampton locks down Sandy Koufax championship by beating Amherst
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John Roseboro delivers a walk off hit giving Sandy Koufax the win April 22 1965 - This Day In Baseball
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Jackie Robinson - Wikipedia
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Baseball Research Journal SABR Society for American Baseball
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The Incomparable Career of Sandy Koufax - The Atlantic
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Sandy Koufax, Hall of Fame Pitcher, Dodgers Legend
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Sandy Koufax: Indiana semi-pro team cut the future Hall of Famer
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The Year That Finding the single memory that defines each baseball season since 1903 - ESPN