Sean Doolittle retires after path led to All-Star, World Series honors
Sean Doolittle: Sports are a reward America must earn - The Washington Post
Sean Doolittle retires after 11 MLB seasons, leaving lasting Nationals, A's legacy
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Oakland Athletics - The Athletic
Former Oakland A's, Washington Nationals reliever announces retirement
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors - NBC Sports
Nationals pitcher and LGBTQ ally Sean Doolittle retires from MLB - Outsports
Oakland Athletics - News, Schedule, Scores, Roster, and Stats - The Athletic
Sean Doolittle retires, his gratitude far outweighing any regret - The Washington Post
Sean Doolittle - MLB Relief pitcher - News, Stats, Bio and more - The Athletic
No test results, lots of uncertainty: Sean Doolittle details anxiety within MLB summer camps
A Long Goodbye to the Nationals' Retiring Pitcher Sean Doolittle - InsideHook
Nationals reflect on Sean Doolittle, retirement
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors