Reliever Sean Doolittle announces MLB retirement after 11 seasons
MLB players who might retire after the 2022 season
World Series Champion Sean Doolittle Announces Retirement
Sean Doolittle retires after 11 MLB seasons, leaving lasting
I don't have any regrets': Nats fan fave Sean Doolittle retires
All-Star reliever Sean Doolittle retires after 11 seasons
Sean Doolittle saves a World Series game - Athletics Nation
Sean Doolittle retires after path led to All-Star, World Series honors
Nationals announce Sean Doolittle will catch Dr. Fauci's first
Sean Doolittle is back with the Washington Nationals after signing