Colorado Rockies: Buster Posey retires as a Rockies killer,, reaction to Padres hiring Bob Melvin
Buster Posey Announces Retirement - MLB Trade Rumors
Report: Giants' Buster Posey will announce retirement - NBC Sports
Buster Posey: San Francisco Giants' 7-time All-Star catcher to retire
Giants catcher Buster Posey will announce retirement - Los Angeles Times
Giants great Posey announces MLB retirement despite resurgence
Stats could hurt Buster Posey's Hall of Fame candidacy, Duane Kuiper says – NBC Sports Bay Area & California
San Francisco Giants” Buster Posey wins NL MVP award – Times Herald Online
Buster Posey - Wikipedia
Giants' Buster Posey expected to announce retirement: reports
Report: Giants Gold Glove catcher Buster Posey to retire