San Francisco Giants' Buster Posey opts out of 2020 season
Giants catcher Buster Posey, former NL MVP, announces retirement
Buster Posey is back behind plate after opting out in 2020, Taiwan News
Giants' Buster Posey to announce retirement Thursday: Sources - The Athletic
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Giants' Buster Posey latest MLB star to opt out of 2020 season - Athletics Nation
Buster Posey opts out of playing for San Francisco Giants in coronavirus-shortened MLB season - CBS News
Retired Giants catcher Buster Posey goes back to school to complete his degree from Florida State
Buster Posey Joins San Francisco Giants Ownership Group - The New York Times
SF Giants: With Buster Posey retired, is it Joey Bart's time for an extended look? – Daily Democrat
Giants' Buster Posey arrives in camp but says he still might opt out