Giants' Buster Posey to announce retirement Thursday: Sources - The Athletic
Buster Posey considers opting out of San Francisco Giants season - McCovey Chronicles
Giants star catcher Posey out this year over virus concerns
Report - San Francisco Giants' Buster Posey plans to retire Thursday - ESPN
How SF Giants' Buster Posey came all the way back to All-Star form
San Francisco Giants roster and schedule for 2020 season - NBC Sports
Posey out for 2020 as MLB teams deal with churning rosters
Buster Posey retirement: Giants catcher's career ends fittingly - Sports Illustrated
Angels Baseball: Buster Posey's opt-out decision puts spotlight on Mike Trout