Oakland Athletics pitcher Sean Doolittle, right, celebrates with
Nationals' Strengths No. 5: Sean Doolittle's serenity – NBC Sports
Nationals pitcher Sean Doolittle will not attend team's White
World Series Champion Sean Doolittle Announces Retirement
Sean Doolittle gives up homer in 9th as A's lose to White Sox 5-4
Nats get Madson, Doolittle from A's for Treinen, prospects - WTOP News
Nationals: Sean Doolittle, a World Series champion, retires
Oakland A's extension with Sean Doolittle is not that weird
Nationals pitcher and LGBTQ ally Sean Doolittle retires from MLB
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Soto, Nationals top Cole, Astros 5-4 in World Series opener - WTOP