Former A's reliever Sean Doolittle returns to Coliseum: 'I grew up here, man

Oakland A's reliever Dan Otero made right choice in picking baseball – The Mercury News

Interview: Oakland Athletics pitcher Sean Doolittle - Decibel Magazine

A's pitcher Chris Bassitt to return to mound on Thursday

A's pitcher Chris Bassitt to return to mound on Thursday

Sean Doolittle retires after 11 MLB seasons, leaving lasting Nationals, A's legacy - The Athletic

Sean Doolittle, Ryan Madson Traded to Nationals for Blake Treinen, Prospects, News, Scores, Highlights, Stats, and Rumors

A's Casilla blows Chris Smith's strong outing against Rays – East Bay Times

Sean Doolittle excited to return to Nationals in 2023

Against the Odds—VIRGINIA Magazine

A's win convincingly, snap 8-game skid and put 108th loss on hold

Complete Oakland Athletics 2013 Season Preview, News, Scores, Highlights, Stats, and Rumors

Behind the demise of on-field bullpens in MLB and their lasting imprint on the game