Giants' Buster Posey latest MLB star to opt out of 2020 season - Athletics Nation

These 25 Players Opted Out Of MLB In 2020. How Are They Doing In 2021?

Giants' Buster Posey named NL starter for 2021 MLB All-Star Game – NBC Sports Bay Area & California

LIVE: Buster Posey announces retirement at Oracle Park

Buster Posey - Wikipedia

Buster Posey retires: Looking back at FSU Seminoles baseball career

Giants catcher Buster Posey will announce retirement - Los Angeles Times

The NL West Has Only One Superteam, and That Team Has Buster Posey - The Ringer

SF Giants' Buster Posey set to announce retirement on Thursday, per report – Times Herald Online

San Francisco Giants catcher Buster Posey's expected retirement announcement shocks fans - ABC7 San Francisco

Giants' Buster Posey Opts out of MLB Restart, Citing Health of Newborn Twins, News, Scores, Highlights, Stats, and Rumors

SF Giants' Buster Posey to sit out 2020 season, adopt twin girls

Giants' Buster Posey Retires, Ending 7-Time All-Star's Career At 34