Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors - WTOP News
Sean Doolittle blows first save with Washington Nationals on two pitches: “They didn't have that killer instinct behind them.” - Federal Baseball
Washington Nationals reliever Sean Doolittle heads to IL with sprained elbow - ESPN
Is it my turn to read?' Mets' TV broadcast got weird during 25-4 loss to Nats - The Washington Post
Sean Doolittle retires after path led to All-Star, World Series honors
The Team That Reads - Chesapeake Family
Washington Nationals To Launch 'Summer Reading Sundays
Washington Nationals Launch 'Summer Reading Sundays' Program - The Washington Informer
Washinton Nationals' Sean Doolittle back with something to prove, and velocity that was not there in 2020 - Federal Baseball
Nationals pitcher Sean Doolittle talks summer reading with local students –
Nationals Pitcher Speaks Out Against Charlottesville Rally and Trump's Response - Washingtonian