Washington Nationals' Sean Doolittle on issues with testing early

Washington Nationals closer Sean Doolittle declines White House invite: 'I just can't go

Sean Doolittle: Sports are a reward America must earn - The Washington Post

No test results, lots of uncertainty: Sean Doolittle details anxiety within MLB summer camps

Sean Doolittle, the Nats' bullpen cart champion, wants to help pick its driver - The Washington Post

10 Reasons We're Going To Miss Sean Doolittle

Washington Nationals: Sean Doolittle's indecision could give job to Harris

MLB COVID-19 Testing Delays Workouts, Could Impact Baseball Restart

Socialist Star Pitcher Sean Doolittle and Wife Speak Out on MLB's Reopening Proposal

Washington Nationals and Houston Astros cancel workouts because of COVID-19 testing delays: 'Without accurate and timely testing it is simply not safe' – Hartford Courant

Jose Vidro got Sean Doolittle to Nationals