Nationals: Sean Doolittle, a World Series champion, retires
Sean Doolittle retirement: World Series champion, All-Star relief
Nationals pitcher Sean Doolittle announces his retirement after
Sean Doolittle retires
MORE
Nationals pitcher Sean Doolittle announces his retirement after
Nationals pitcher Sean Doolittle announces his retirement after
Nationals pitcher Sean Doolittle announces his retirement after more
Nationals pitcher Sean Doolittle announces his retirement after
Oakland Athletics @MLB gotta wish a happy retirement to @Sean
Nationals reliever Sean Doolittle on IL with sprained elbow - The
Sean Doolittle retires after path led to All-Star, World Series honors
