Here are the Yankees' 21 retired numbers
Yankees' Andy Pettitte Announces Retirement: A 5-Time World
Revisiting Andy Pettitte's gem in game two of the 2003 World
Andy Pettitte No Name Jersey - Grand Slam New York
CLEARANCE SALE: ANDY PETTITTE NEW YORK YANKEES RETIRED JERSEY
Yankees Retire Andy Pettitte's Uniform #46
Yankees' Andy Pettitte Announces Retirement: A 5-Time World
Emotional Andy Pettitte has his No. 46 retired by Yankees
Five Cuts: Andy Pettitte exits with complete game in Houston
Andy Pettitte Stands Alone as the Only Legend to Wear No. 46 - WSJ
Pettitte turns down option with Yanks
Andy Pettitte Stands Alone as the Only Legend to Wear No. 46 - WSJ
New York Yankees to retire Paul O'Neill's No. 21 on Aug. 21
New York Yankees: Net Worth, Payroll, History, Roster, and More