Former Yankee Chuck Knoblauch calls out Yankees for retiring Andy Pettitte's number
Yankees' Andy Pettitte announces retirement - The San Diego Union-Tribune
Yankees' Andy Pettitte Announces Retirement: A 5-Time World Champion, News, Scores, Highlights, Stats, and Rumors
Andy Pettitte's a tough Cooperstown case
Andy Pettitte will retire at season's end
No, Kyle Seager never made a postseason. But the Mariners' star went out on his own terms.
Andy Pettitte Decides to Retire - The New York Times
Yankees' Andy Pettitte Announces Retirement: A 5-Time World Champion, News, Scores, Highlights, Stats, and Rumors
CC Sabathia, Yankee Yapping