Buster Posey - MLB News, Rumors, & Updates
San Francisco Giants' Buster Posey retires, citing family, physical toll of game - ESPN
Buster Posey - San Francisco Chronicle
Buster Posey: San Francisco Giants' 7-time All-Star catcher to retire
Giants' Buster Posey to retire, per report - MLB Daily Dish
Buster Posey - San Francisco Chronicle
Buster Posey announces retirement
Buster Posey announces retirement
Why is Buster Posey retiring? Giants MVP catcher reportedly calling it a career