Giants first to 90 wins, increase lead in NL West
Buster Posey Retires — Is He a Hall of Famer? – The Fordham Ram
San Francisco Giants' Buster Posey, Baltimore Orioles' Trey Mancini named Comeback Players of the Year - ESPN
Could Buster Posey win the 2021 NL MVP? We asked voters – KNBR
Buster Posey Retires: What are his Hall of Fame Chances? - Cooperstown Cred
Buster Posey - San Francisco Chronicle
Giants' Buster Posey Wins 2021 NL Comeback Player of the Year – NBC Los Angeles
Looking back on Buster Posey's Giants career, season by season
Retired Giants catcher Buster Posey goes back to school to complete his degree from Florida State
Buster Posey named NL Comeback Player of the Year – KNBR
Tray Mancini, Buster Posey win MLB's Comeback Player of the Year awards - Sports Illustrated
Trey Mancini, Buster Posey win 2021 MLB Comeback Players of the Year
Buster Posey - Bay Area Sports Hall of Fame