Yankees retire Jorge Posada's No. 20
Yankees retired numbers: Paul O'Neill latest to be added to list
Yankees retire Posada's No. 20
Derek Jeter's No. 2 to be retired on May 14, last Yankees' single digit – The Denver Post
MORE
Yankees next retired number prediction
New York Yankees ceremony addiction is getting out of hand
Jorge Posada - Wikipedia
Jorge Posada says former teammates Alex Rodriguez, Roger Clemens don't deserve to be in Hall of Fame - ESPN
Yankees retire Jorge Posada's No. 20
Yankees Retire Jorge Posada's No. 20, With a Nod to No. 15 - The New York Times
Jorge Posada has No. 20 retired by Yankees on 'one of the happiest days of my life' – New York Daily News