Good old blast from the past! : r/MLB_9Innings
Giants' Buster Posey explains why he chose to retire from MLB – NBC Sports Bay Area & California
SF Giants News: Should the Giants retire Buster Posey's number? - McCovey Chronicles
Buster Posey Retires to Focus on Family. Fans React with Love.
Buster Posey to retire. : r/MLB_9Innings
Giants to retire Will Clark's number on July 30 : r/SFGiants
Good old blast from the past! : r/MLB_9Innings
Buster Posey announces retirement
San Francisco Giants' Buster Posey retires, citing family, physical toll of game - ESPN
MLB world reacts to shocking Buster Posey retirement news
Is Buster Posey ever going to come back? : r/MLB_9Innings