Photos: A look at Buster Posey's Giants career from 2009 to 2021
Hoornstra: Baseball's old guys rule, for now if not for long – Orange County Register
Family at forefront of Lee County grad Buster Posey's MLB retirement decision, Sports
Buster Posey retires from baseball after 12 MLB seasons – NSS
Buster Posey announces retirement
Photos: A look at Buster Posey's Giants career from 2009 to 2021
Buster Posey announces retirement
Here We Are, Again': The Giants Stick to a Formula That Works - The New York Times
Buster Posey - MLB News, Rumors, & Updates
MLB Offseason Rumors: Buster Posey to announce retirement - Over the Monster
Surprise retirements from MLB players
Buster Posey retires: Giants catcher's singular career, legacy - Sports Illustrated
Buster Posey retires from baseball after 12 MLB seasons – NSS
Buster Posey announces retirement