Washington Nationals hope to have Sean Doolittle back in closer's role down the stretch - Federal Baseball
Thank you, Sean Doolittle
Washington Nationals re-sign Sean Doolittle to minor league deal; decline 2023 option for Nelson Cruz - Federal Baseball
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Oakland A's trade Sean Doolittle & Ryan Madson to Nationals for Blake Treinen & 2 prospects - Athletics Nation
Nationals pick up $6M option for 2019 on closer Sean Doolittle
Washington Nationals relief pitcher Sean Doolittle throws out a ceremonial first pitch after announcing his retirement before a baseball game between the Atlanta Braves and the Nationals at Nationals Park, Friday, Sept.
Nationals' Sean Doolittle retiring after more than a decade in the majors
Nationals Pitcher Sean Doolittle: The Closer Role Is All About Managing Energy
Nationals' lefty Sean Doolittle to undergo season-ending elbow surgery - NBC Sports