Buster Posey announces retirement
Buster Posey to announce retirement [report] – KNBR
Buster Posey set to retire despite big season
Giants' Buster Posey explains why he chose to retire from MLB – NBC Sports Bay Area & California
SF Giants Buster Posey announces retirement after 12 seasons
Buster Posey Announces Retirement - MLB Trade Rumors
WATCH: Buster Posey's Retirement Speech
WATCH: Buster Posey's Retirement Speech
Buster Posey explains why he retired after celebrated career with Giants