MLB notebook: Ryan Howard announces his retirement
Ryan Howard, Phillies great, officially retires from baseball
Phillies great Ryan Howard officially announces retirement – The
Ryan Howard - Wikipedia
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Former Philadelphia Phillies star Ryan Howard officially retires with
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World Series MVP Stephen Strasburg has decided to retire, AP
Major league notebook: Prince Fielder gets a fat deal in Detroit
Andy Roddick's career ends with Open loss - The Boston Globe
