Yankees pitcher Andy Pettitte to retire after 16 seasons
Cliff Corcoran: Pettitte comes out of retirement, gives Yankees enviable depth - Sports Illustrated
Andy Pettitte - Wikipedia
Andy Pettitte, Baseball Wiki
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This Day in Yankees History: Andy Pettitte retires, but not for good - Pinstripe Alley
Andy Pettitte's number to be retired by Yankees
Pettitte, Rivera pitch Yankees past Red Sox for first win
New York Yankees pitcher Andy Pettitte will retire after season – The Mercury News
Andy Pettitte - Wikipedia
Yankees' Andy Pettitte announces retirement - The San Diego Union-Tribune
Andy Pettitte Returning To Yankees, Pitcher Signs Minor League Contract
Pettitte, Rivera make Yankees-Astros series special
Andy Pettitte making a comeback with Yankees
Bronx? Cooperstown? Questions for Pettitte to Ponder - The New York Times
YANKEES-METS: Andy Pettitte throws scoreless inning in final spring game