Longtime MLB reliever Sean Doolittle announces retirement after 11-year career

Doolittle spent the majority of his career with the Oakland Athletics and Washington Nationals.
He was a two-time All-Star and helped the Nationals win the World Series in 2019.
Doolittle had a career 3.20 ERA with 112 saves over 463 relief appearances.
He expressed gratitude to fans and organizations he played for.
Doolittle was known for supporting social causes and not causing issues for MLB.