AP Source: Giants C Buster Posey will announce retirement
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Buster Posey announces retirement
SF Giants Buster Posey announces retirement after 12 seasons
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Irreplaceable, legendary': Buster Posey retirement sparks tributes
Buster Posey Major League Baseball, News, Scores, Highlights
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Buster Posey announces retirement
Report: Buster Posey to announce retirement
Buster Posey explains why he retired after celebrated career with