Sean Doolittle
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Washington Nationals re-sign Sean Doolittle to minor league deal; decline 2023 option for Nelson Cruz - Federal Baseball
Sean Doolittle - Wikipedia
White Sox place right-hander Michael Kopech on IL after cyst removed from right knee
Memories of covering Ryan Zimmerman after he announced his retirement - Federal Baseball
Sean Doolittle retires after path led to All-Star, World Series honors
Ryan Zimmerman - Wikipedia
Mike_Rizzo
Nationals Pitcher Sean Doolittle Announces His Retirement After More Than a Decade in the Majors - The Messenger
Washington Nationals - Washington Times