Giants' Buster Posey may opt out of 2020 MLB season
Giants catcher Buster Posey opts out of 2020 season
MLB players who are opting out of the 2020 season - ESPN
Buster Posey sets record with Giants, catches 1,000th game
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I'm walking off this field': Retiring Giants legend Buster Posey
Giants' Buster Posey Opts Out of 2020 Season - Tailgater Magazine
Buster Posey is back behind plate after opting out in 2020 - The