Here is a list of San Francisco Giants players and personnel who have worn No. 28 since 1958:
Buster Posey is 23 years old. He was born on March 27, 1987.
As of the 2014 season, the average age of a San Francisco Giants player is 28 years old.
Mike Kickham debuted on May 28, 2013, playing for the San Francisco Giants at AT&T Park; he played his final game on September 28, 2013, playing for the San Francisco Giants at AT&T Park.
Jake Brown debuted on May 17, 1975, playing for the San Francisco Giants at Candlestick Park; he played his final game on September 28, 1975, playing for the San Francisco Giants at Candlestick Park.
Don Choate debuted on September 12, 1960, playing for the San Francisco Giants at Candlestick Park; he played his final game on September 28, 1960, playing for the San Francisco Giants at Candlestick Park.
Ryan Sadowski debuted on June 28, 2009, playing for the San Francisco Giants at AT&T Park; he played his final game on July 31, 2009, playing for the San Francisco Giants at AT&T Park.
Kensuke Tanaka debuted on July 9, 2013, playing for the San Francisco Giants at AT&T Park; he played his final game on July 28, 2013, playing for the San Francisco Giants at AT&T Park.
Dax Jones debuted on July 11, 1996, playing for the San Francisco Giants at Candlestick Park; he played his final game on September 28, 1996, playing for the San Francisco Giants at Candlestick Park.
Jean Machi debuted on September 3, 2012, playing for the San Francisco Giants at AT&T Park; he played his final game on September 28, 2013, playing for the San Francisco Giants at AT&T Park.
Randy McCament debuted on June 28, 1989, playing for the San Francisco Giants at Candlestick Park; he played his final game on May 21, 1990, playing for the San Francisco Giants at Candlestick Park.
Scott Munter debuted on May 11, 2005, playing for the San Francisco Giants at SBC Park; he played his final game on September 28, 2007, playing for the San Francisco Giants at AT&T Park.
Ivan Ochoa debuted on July 12, 2008, playing for the San Francisco Giants at AT&T Park; he played his final game on September 28, 2008, playing for the San Francisco Giants at AT&T Park.