No test results, lots of uncertainty: Sean Doolittle details anxiety within MLB summer camps
I just can't do it': Nationals pitcher Sean Doolittle declines White House invite, Washington Nationals
Rehabbing Sean Doolittle won't be on Nationals' Opening Day roster - The Washington Post
Sean Doolittle, Major League Baseball, News, Scores, Highlights, Stats, and Rumors
Sean Doolittle retires after 11 MLB seasons with a 'full heart
Athletics 2014 season review: Sean Doolittle, from washout to All-Star - Athletics Nation
Sean Doolittle 2019 Highlights
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Sean Doolittle's heavy workload could make him a free agent this offseason - The Washington Post
Sean Doolittle, Major League Baseball, News, Scores, Highlights, Stats, and Rumors