Buster Posey officially opts out of the 2020 MLB season
Posey Made Decision To Bring Him Back Easy For The Giants –
Here all of the MLB players that are opting out of the 2020 season so far - MLB Daily Dish
Here We Are, Again': The Giants Stick to a Formula That Works - The New York Times
Giants catcher Buster Posey to retire from MLB
Nevius: Buster Posey's bold decision to sit last year paying off for Giants
Giants don't view Joey Bart as next up after Buster Posey opts out of season – KNBR
With Buster Posey sitting out, who is the face of 2020 SF Giants? – Daily Democrat
Buster Posey opts out of 2020 MLB season: Giants star catcher concerned about health of adopted twin baby girls
Buster Posey opting out of 2020 MLB season - DraftKings Network
SF Giants: With Posey retired, is it Bart's time for an extended look?
Buster Posey opts out of playing for San Francisco Giants in coronavirus-shortened MLB season - CBS News