Giants' Buster Posey Plans to Announce Retirement Thursday - Stadium
Buster Posey Announces His Retirement
SF Giants: Buster Posey set to announce retirement
Buster Posey announces retirement
Buster Posey returns to college after 15 years of playing ball - Sactown Sports
Giants Buster Posey announces retirement at press conference - McCovey Chronicles
Buster Posey Retires - Breakpoint
Giants legend Buster Posey officially retires, cites family, other reasons
SF Giants on NBCS on X: BREAKING: Buster Posey plans to announce his retirement tomorrow / X
Buster Posey announces retirement
AP: Giants Catcher Buster Posey Will Announce Retirement, Sports