After 17 seasons and 5 titles, Posada retires - Deseret News
Posada says he's finished in pinstripes
Jorge Posada retires after 17 seasons and 5 titles
Jorge Posada in Danger of Falling Off Hall of Fame Ballot - The New York Times
Williams has No. 51 retired at Yankee Stadium
Yankees' CC Sabathia retires with Hall-of-Fame credentials - Los Angeles Times
New York Yankees retired numbers: Is team too generous? - Sports Illustrated
New York Yankees: Top 10 catchers in franchise history
New York Yankees Jorge Posada set to Retire
Yankees' Posada plans to call it quits