Buster Posey announces retirement
Buster Posey to announce retirement – KRON4
Major League Baseball links - Buster Posey retires, Tigers add
Buster Posey announces retirement
Giants' Buster Posey reportedly set to retire Thursday
Giants' Brandon Crawford writes emotional Buster Posey tribute
Giants' Buster Posey to retire, per report - MLB Daily Dish
Buster Posey announces retirement
Giants legend Buster Posey going back to school to earn degree
Citing the Pain of a Demanding Job, Buster Posey Retires at 34