Yankees pitcher Andy Pettitte to retire after 16 seasons

Andy Pettitte – Society for American Baseball Research

Yankees' Andy Pettitte announces retirement - The San Diego Union-Tribune

Andy Pettitte leaves Yankees loss with muscle injury

Yankees' Pettitte continues making progress – Daily Freeman

This Day in Yankees History: Andy Pettitte comes out of retirement - Pinstripe Alley

Andy Pettitte makes comeback, rejoins Yankees

Cover Interview: Andy Pettitte, New York Yankees

Yankees to retire numbers of Andy Pettitte, Jorge Posada and Bernie Williams - ABC7 New York

Pettitte, Rivera make Yankees-Astros series special

Yankees Sign Andy Pettitte - MLB Trade Rumors

Yankees pitcher Andy Pettitte to retire

Andy Pettitte, New York Yankees: Lefty Veteran to Retire - WSJ

Yankees to retire Nos. of Bernie, Jorge, Pettitte

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