San Francisco Giants' Buster Posey retires, citing family, physical toll of game - ESPN
San Francisco Giants' Buster Posey retires, citing family, physical toll of game - ESPN
Buster Posey - Wikipedia
Giants legend Buster Posey officially retires, cites family, other reasons
Buster Posey Joins San Francisco Giants Ownership Group - The New York Times
Giants' Buster Posey to retire, per report - MLB Daily Dish
Brandon Crawford's thoughts on Buster Posey retiring? 'It's sad
Giants' Buster Posey Opts Out of Virus-Shortened Season – NBC Bay Area
Buster Posey retires: Giants catcher's singular career, legacy - Sports Illustrated