Rehabbing Sean Doolittle won't be on Nationals' Opening Day roster - The Washington Post
Sean Doolittle retires
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors – NBC4 Washington
Sean Doolittle retires
Deion Sanders and the Joys of Hype
Sean Doolittle, Baseball's Left-Wing Lefty, Retires
Washington Nationals find relief in A's deal, but not a true closer - ESPN - Washington Nationals- ESPN
Sean Doolittle retires after path led to All-Star, World Series honors
Sean Doolittle Leads The 'Kojo For Kids' Lineup - The Kojo Nnamdi Show
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Nationals Acquire Sean Doolittle, Ryan Madson - MLB Trade Rumors