Nationals left-handed pitcher Sean Doolittle opts for season

Sean Doolittle, Nationals' top relievers easing into spring training - The Washington Post

Nationals acquire LHP Sean Doolittle & RHP Ryan Madson from Oakland A's, by Nationals Communications

Nationals' Sean Doolittle skipping White House event

Nationals pitcher Sean Doolittle announces his retirement after more than a decade in the majors – NBC4 Washington

The Nationals have a lefty reliever conundrum - The Washington Post

A look at the Nationals' lefty relievers

Washinton Nationals' Sean Doolittle back with something to prove, and velocity that was not there in 2020 - Federal Baseball

Nationals Acquire Sean Doolittle, Ryan Madson - MLB Trade Rumors

Sean Doolittle pledges to pay Nationals minor leaguers' salaries, might help you feel a tiny bit better about the world, This is the Loop

Potential Twins Bullpen Target: Sean Doolittle, LHP, Nationals - Twins - Twins Daily

Washington Nationals need Sean Doolittle to be Sean Doolittle again; and he's almost there - Federal Baseball

Sean Doolittle retires after path led to All-Star, World Series honors

Sean Doolittle, Bryce Harper and Max Scherzer named National League All-Stars, by Nationals Communications