Former Oakland A's, Washington Nationals reliever announces retirement
A's Q&A: Sean Doolittle among baseball's best at doing for others
Sean Doolittle retires after 11 MLB seasons with a 'full heart
Josh Reddick 7000 Coliseum Way
In Praise Of The Bullpen
How The (2013 American League) West Was Won AN Style - In April - Athletics Nation
Sean Doolittle retires after path led to All-Star, World Series honors
A's rally for two runs in 10th to beat the Yankees – East Bay Times
Oakland Athletics Player Sean Doolittle on Refugee Crisis
Nationals' Doolittle at camp but 'not entirely' sure he'll play