A's bullpen roles still appear fluid
Montas to Yankees, Mancini to Astros ahead of trade deadline
Athletics re-sign reliever Jake Diekman, non-tender Treinen, Sports
Oakland A's Liam Hendriks and Jake Diekman named finalists for 2020 All-MLB Team - Athletics Nation
Could a Jake Diekman and Philadelphia Phillies Reunion Be Brewing? - Sports Illustrated Inside The Phillies
Oakland A's Boom and Bust Their Way to First Place - The New York Times
Bullpen a key to Athletics' early success
Royals: Should Kansas City bring back Jake Diekman?
2022 Oakland Athletics Season Preview
Oakland A's decline option on reliever Jake Diekman - Athletics Nation
Athletics 2022 roster breakdown