Andy Pettitte – Society for American Baseball Research
MLB, USA Baseball Recognize Pitch Smart Compliant Organizations for 2020
Andy Pettitte - Wikipedia
DBU Baseball Presents Champions for Christ: An Evening with Andy Pettitte - Dallas Baptist University Athletics
Why everybody should vote Andy Pettitte into the Hall of Fame - ESPN
Jeter returns as Yankees honor 1998 team at Old-Timers' Day, Boone booed by some
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Andy Pettitte PSA AutographFacts℠
Andy Pettitte – Society for American Baseball Research
Baseball-Reference.com - 10 years ago today, Andy Pettitte ended retirement after one year, signing a minor league contract with the New York Yankees.