SF Giants' Buster Posey details emotional decision to retire: 'I went into this last season feeling like it might be my last' – Times Herald Online
San Francisco Giants star Buster Posey opts out of 2020 season
Giants' Buster Posey honored by MLB players for comeback season – NBC Sports Bay Area & California
As Posey opts out, Giants begin new era under Gabe Kapler - The San Diego Union-Tribune
With Buster Posey sitting out, who is the face of 2020 San Francisco Giants? – Hartford Courant
San Francisco Giants legend Buster Posey announces retirement - AmadorValleyToday
Would the SF Giants have reached postseason with Buster Posey?
SF Giants' Buster Posey leaves unrivaled legacy in retirement
Giants' Buster Posey Won't Play in 2020 MLB Season Due to Twin Newborns' Health amid Coronavirus