Giants catcher Buster Posey will announce retirement Thursday, source says
Buster Posey returns to college after 15 years of playing ball - Sactown Sports
Buster Posey ready to move on from baseball, says farewell
MLB Twitter reacts to Buster Posey's shocking Giants retirement – NBC Sports Bay Area & California
Giants' superstar catcher Buster Posey to retire
Buster Posey set to move back to the Bay Area
SF Giants' Buster Posey leaves unrivaled legacy in retirement
Giants Buster Posey announces retirement at press conference - McCovey Chronicles
Report: San Francisco Giants catcher Buster Posey to announce retirement Thursday
LIVE: Buster Posey announces retirement at Oracle Park
Giants' Buster Posey to retire, per report - MLB Daily Dish
Buster Posey announces retirement