Washington Nationals relief pitcher Sean Doolittle : Bullseye with Jesse Thorn : NPR
World Series champion pitcher retires from MLB after 11 seasons (video)
Sean Doolittle Announces Retirement - MLB Trade Rumors
Nationals pitcher Sean Doolittle announces his retirement
An ode to Doolitte, a D.C. legend - Blog
Nationals' Sean Doolittle skipping White House event
World Series champion, All-Star relief pitcher Sean Doolittle announces retirement after 11 seasons
Two-time All-Star reliever announces retirement
Sean Doolittle - MLB News, Rumors, & Updates