Report: San Francisco Giants catcher Buster Posey to announce retirement Thursday
San Francisco Giants to honor Buster Posey before May 7 game at Oracle Park - ABC7 San Francisco
San Francisco Giants' Buster Posey retires, citing family, physical toll of game - ESPN
SF Giants Buster Posey announces retirement after 12 seasons
Report - San Francisco Giants' Buster Posey plans to retire Thursday - ESPN
Giants' Buster Posey is unexpectedly retiring, according to reports
Buster Posey plans to retire, ending his storied Giants career
Buster Posey announces retirement
Giants Star Buster Posey Announces Retirement – NBC Bay Area
MLB Twitter reacts to Buster Posey's shocking Giants retirement – NBC Sports Bay Area & California
Buster Posey announces retirement