Giants catcher Buster Posey to retire from MLB
Buster Posey announces retirement
Buster Posey Joins San Francisco Giants Ownership Group - Sactown Sports
Kawakami: Now the longest-tenured Giant, Buster Posey is the franchise's leader in every way - The Athletic
Buster Posey announces retirement
SF Giants' Buster Posey: What it was like covering a baseball icon
SF Giants: With Buster Posey retired, is it Joey Bart's time for an extended look? – Daily Democrat
Posey decides to retire from San Francisco - WQKT Sports Country Radio - Wooster Ohio
MLB News: Giant farewell: Buster Posey retires with three World Series titles
Giants' Buster Posey to retire, per report - MLB Daily Dish
Surprise retirements from MLB players