Three-time champ Buster Posey becomes first former player to join
Retired Giants catcher Buster Posey goes back to school to
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Buster Posey announces retirement
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Giants catcher Buster Posey to retire from MLB
Buster Posey announces retirement
Report: San Francisco Giants catcher Buster Posey to announce
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SF Giants News: Buster Posey to announce his retirement tomorrow
FSU legend and Major League Baseball star Buster Posey announces