After 11 seasons in the MLB, NATS pitcher, Sean Doolittle
Nationals' Sean Doolittle retiring after more than a decade in the majors
Nationals reliever Sean Doolittle moved to 60-day injured list - Washington Times
Sean Doolittle retires after 11 MLB seasons with a 'full heart
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All-Star reliever Sean Doolittle retires after 11 seasons - Field Level Media - Professional sports content solutions
Stephen Strasburg, Sean Doolittle earn monthly National League honors, by Nationals Communications
After 11 seasons in the MLB, NATS pitcher, Sean Doolittle announces retirement and his next steps
Sean Doolittle announces his retirement from the Nats after 11 seasons
Nationals' Sean Doolittle skipping White House event
Washington Nationals re-sign Sean Doolittle to minor league deal; decline 2023 option for Nelson Cruz - Federal Baseball
National treasure: Shawnee grad Doolittle continues to thrive in big leagues - The Sun Newspapers
Ex-Nats reliever Sean Doolittle exits after '11 incredible seasons' - ESPN
After 11 seasons in the MLB, NATS pitcher, Sean Doolittle announces retirement and his next steps
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Sean Doolittle retires after 11 MLB seasons, leaving lasting Nationals, A's legacy - The Athletic
How the Nationals Lost Their Superstars and Still Won the NL East - The Ringer