New Washington Nationals' relievers Sean Doolittle and Ryan Madson debut in win in Anaheim - Federal Baseball
Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors
Sean Doolittle retires
Lefty-less bullpen turns tight game into lopsided loss (updated) - Blog
MLB players who could retire this offseason
Sean Doolittle, Baseball's Left-Wing Lefty, Retires
Jose Castillo on comeback trail again for Padres - The San Diego Union-Tribune
Nationals pitcher and LGBTQ ally Sean Doolittle retires from MLB - Outsports
MLB Power Rankings: Where All 30 Teams Stand Entering Free Agency, News, Scores, Highlights, Stats, and Rumors
Category: Nationals
Oakland A's extension with Sean Doolittle is not that weird