Sean Doolittle, Athletics Agree to Five-Year Extension: Reactions
Sean Doolittle trade fits Oakland A's rebuild and improves game of
Athletics sign relief pitcher Sean Doolittle to 5-year contract
Sean Doolittle not afraid to stand up for what he believes - The
Nationals pitcher Sean Doolittle announces his retirement after
Sean Doolittle and the 48/1 K/BB ratio - Minor League Ball
Washington Nationals hope to have Sean Doolittle back in closer's
Washington Nationals Series Preview: Worst in the AL, Oakland
All-Star reliever Sean Doolittle retires after 11 seasons
Reliever Sean Doolittle announces MLB retirement after 11 seasons
Oakland closer Sean Doolittle stays in the zone