NEW YORK — With Joe Girardi and Jim Leyritz in the home stretch of their careers in the late 1990s, Jorge Posada was deemed the Yankees' heir apparent at catcher."Jim and I knew our days were numbered. We enjoyed it as long as we could," Girardi said, "and Jorge turned into everything that everyone expected."For his 17-year career in pinstripes, Posada was honored before Saturday afternoon's Yankees game. The Yankees unveiled a plaque in Monument Park recognizing his career and retired his uniform No. 20."Trying to put into words the feelings and emotions around this day is definitely tough," Posada said in his speech. "I am simply a man who was passionate about baseball and the New York Yankees. So being here seems surreal."I can honestly tell you this is one of the happiest days of my life."Former teammates and coaches ventured to Yankee Stadium to take part in the ceremony, including the other three of the team's "Core Four" who won five World Series titles (1996, '98, '99, 2000, '09) together — Andy Pettitte , Mariano Rivera and Derek Jeter . Yogi Berra , whose No. 8 can be seen in Monument Park, couldn't attend but wrote a message that was displayed during the ceremony."I am very sad that I cannot be with you today," he wrote, "but my knees hurt too much. Just wait, one day your knees are gonna hurt too! You were a real good ball player for a long time — I'm proud of you kid." FAN OKAY: The Tigers said the fan who was hit by a foul ball in Friday night's game was released from the hospital. The woman was hit by a line drive off the bat of Anthony Gose . METS REACQUIRE YOUNG: New York acquired INF/OF Eric Young , who played with the team from 2013-14, from the Braves for cash considerations and assigned him to Triple-A Las Vegas. Also, the Mets put 1B Lucas Duda on the 15-day disabled list with lower back pain. A'S: Closer Sean Doolittle , who has pitched only one game this season because of a partly torn rotator cuff in his left shoulder, was activated from the 60-day disabled list. GIANTS: CF Angel Pagan , out since Aug. 9 with right patella tendinitis, is set to begin a minor-league rehab assignment today. NATIONALS: 3B and former Ray Yunel Escobar is day to day with a hyperextended neck.