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PHOTOS: Night Out at the Nationals
Washington Nationals' Sean Doolittle on MLB's 2020 season; decreased velo + more - Federal Baseball
Doolittle announces retirement after 11 MLB seasons - Blog
The All-Star Closer Who Is Trying to Save Bookstores - WSJ
All-Star reliever Sean Doolittle retires after 11 seasons
Nationals' Sean Doolittle is MLB's conscience of the game - Sports Illustrated
Sean Doolittle retires after 11 MLB seasons with a 'full heart
Ally and baseball pro Sean Doolittle wears Pride on his cleats
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors – NBC4 Washington
Longtime Washington Nationals, Oakland Athletics Reliever Sean Doolittle Retires - Fastball
Sean Doolittle pledges to pay Nationals minor leaguers' salaries, might help you feel a tiny bit better about the world, This is the Loop