Buster Posey officially opts out of the 2020 MLB season
Buster Posey announces retirement
Expect many more MLB players to opt out of 2020 season: Sherman
Giants star catcher Buster Posey opts out of 2020 MLB season
MORE
Longtime Giants catcher Buster Posey announces retirement after 12 seasons
Giants' Buster Posey to announce retirement Thursday: Sources - The Athletic
Nevius: Buster Posey's bold decision to sit last year paying off for Giants
Giants' Buster Posey revitalized by 2020 opt-out
Tracking MLB Opt-Outs - NBC Sports
Giants' Buster Posey latest MLB star to opt out of 2020 season - Athletics Nation
Nevius: Giants' Joey Bart getting a major league education
SF Giants Highlight: Buster Posey's deep drive to left
Posey, Crawford & Belt, 10-years Service Time Trio