Giants' Buster Posey Wins 2021 NL Comeback Player of the Year – NBC Connecticut
Giants' Buster Posey opting out of 2020 MLB season
SF Giants' Posey opts out, citing twins' health as reason, Sports
Lee Co. star catcher Buster Posey won't play baseball this year
Giants' Buster Posey revitalized by 2020 opt-out
Buster Posey opts out of 2020 season - MLB Daily Dish
Giants' Buster Posey honored by MLB players for comeback season – NBC Sports Bay Area & California
AP Source: Giants C Buster Posey will announce retirement
Giants star catcher Buster Posey to sit out season over coronavirus concerns
Giants' Buster Posey will not play in 2020 after adoption of newborn twins – NBC Sports Bay Area & California
Giants star Buster Posey sitting out the 2020 season – Santa Cruz Sentinel
SF Giants HQ: A different buzz around Buster Posey, the smooth swing of Heliot Ramos and more – Daily Democrat
Buster Posey Joins San Francisco Giants Ownership Group - The New York Times