Sean Doolittle retires
Reliever Sean Doolittle announces MLB retirement after 11 seasons
Nationals Pitcher Sean Doolittle Announces His Retirement After
Oakland's Sean Doolittle leads list of MLB's underappreciated All
Nationals reflect on Sean Doolittle, retirement
BaseballTransactions on Instagram: 2x All-Star and 2019 World
Sean Doolittle, part of Nats' World Series team, retires - The
Nationals pitcher Sean Doolittle announces his retirement after
Sean Doolittle retires after path led to All-Star, World Series honors