Ryan Howard: Ex-Phillies 1B announces retirement - Sports Illustrated
Former Philadelphia Phillies star Ryan Howard officially retires with 'Thank You, Philly' letter - 6abc Philadelphia
Former Phillie Ryan Howard announces retirement - ESPN
Phillies great Ryan Howard officially announces retirement – The Mercury
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Former Philadelphia Phillies star Ryan Howard officially retires with 'Thank You, Philly' letter - 6abc Philadelphia
Ryan Howard Is Officially an Ex-Phillie - Philadelphia Magazine
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Ryan Howard Announces Retirement After 13-Year MLB Career with Phillies, News, Scores, Highlights, Stats, and Rumors
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2011 NLDS -- Philadelphia Phillies 1B Ryan Howard has torn left Achilles tendon - ESPN
Ryan Howard - Wikipedia
WATCH: Phillies Great Ryan Howard Throws First Pitch Before NLCS Game 4 - Fastball
Former Philadelphia Phillies star Ryan Howard officially retires with 'Thank You, Philly' letter - 6abc Philadelphia