MLB Offseason Rumors: Buster Posey to announce retirement - Over the Monster
San Francisco Giants catcher Buster Posey's expected retirement announcement shocks fans - ABC7 San Francisco
AP: Giants Catcher Buster Posey Will Announce Retirement, Sports
Buster Posey announces retirement
Giants' Buster Posey is unexpectedly retiring, according to reports
Buster Posey Rumors: Giants Intend to Bring Back Star; Multiyear Contract Possible, News, Scores, Highlights, Stats, and Rumors
Buster Posey to announce retirement [report] – KNBR
Matt Cain: Buster Posey deserves 'almost all the credit' for Giants' 3 World Series titles – KNBR
Giants catcher Buster Posey will announce retirement Thursday, source says
Former MLB GM on Buster Posey's Reported Retirement
Giants' superstar catcher Buster Posey to retire