Yankees' Andy Pettitte announces retirement - The San Diego Union-Tribune
Yankees pitcher Andy Pettitte to retire
Yankees pitcher Andy Pettitte to retire after 16 seasons
Yankees pitcher Andy Pettitte to retire at end of season, New York Yankees
Hall of Fame candidates and Yankees: Andy Pettitte, Bobby Abreu
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Yankees' Andy Pettitte hanging up pinstripes
New York Yankees pitcher Andy Pettitte will retire after season – The Mercury News