MLB notebook: Ryan Howard announces his retirement
Listen to Ryan Howard emotionally bid farewell to Philadelphia
Ryan Howard - Wikipedia
Ryan Howard officially announces his retirement - NBC Sports
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Ryan Howard Praises Phillies Fans in Retirement Announcement
Ryan Howard Announces Retirement in Players' Tribune Article
Former slugger, first baseman Ryan Howard gives love to Phillies fans
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Phillies first baseman and home run hitter Ryan Howard announces
Former Phillies All-Star Ryan Howard announces retirement from
Ryan Howard on the Phillies' first half, his favorite hitter, and