Nationals reflect on Sean Doolittle, retirement
After 11 seasons in the MLB, NATS pitcher, Sean Doolittle announces retirement and his next steps
Saluting Sean Doolittle, one of the good ones
Sean Doolittle, part of Nats' World Series team, retires - The Washington Post
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Sean Doolittle Announces Retirement - MLB Trade Rumors
Washington Nationals Pitcher Sean Doolittle Announces Retirement After 11 Seasons in MLB - BVM Sports
Ex-Nats reliever Sean Doolittle exits after '11 incredible seasons' - ESPN
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