AP Source: Giants C Buster Posey will announce retirement
Ryan_Zimmerman
Buster Posey announces retirement
Buster_Posey
Buster_Posey
MLB ROUNDUP: Yankees suffer first loss of the season to the Giants as a late rally crumbles
Buster Posey: San Francisco Giants' 7-time All-Star catcher to retire
Giants' Buster Posey expected to announce retirement: reports
Buster_Posey
Nevius: Posey's surprise retirement is understated, typical Buster
Ryan_Zimmerman