Athletics general manager Billy Beane admitted Thursday that Jesse Hahn is looking at a "somewhat extended stay" on the disabled list.
Athletics placed RHP Jesse Hahn on the 15-day disabled list with a right forearm strain.
Jesse Hahn will rest for the next two weeks to nurse a forearm injury.
Jesse Hahn was scratched from Saturday's start against the Indians and has returned to Oakland to undergo an MRI on his right elbow.
Jesse Hahn (elbow) made it through a successful bullpen session on Wednesday afternoon.
Jesse Hahn's next scheduled start has been pushed back to Saturday in Cleveland due to "slight" right elbow discomfort, according to Susan Slusser of the San Francisco Chronicle.
Jesse Hahn limited the Rockies to one run over six innings to earn the win on Wednesday.
Jesse Hahn allowed just one run over 7 2/3 innings Saturday in the A's 4-1 victory over the Angels.
Jesse Hahn pitched the Athletics to a 9-1 win against the Padres on Monday, giving up just one run in 6 2/3 innings.
Jesse Hahn was chased out in the fourth inning after giving up four runs on seven hits and two walks across 3 2/3 innings in Wednesday's no-decision versus the Rangers.
Jesse Hahn pitched another very good game in a 7-5 win over the Tigers on Thursday afternoon, allowing just one run on five hits over seven innings.
Jesse Hahn was on his game Monday, going the distance for his first career shutout in a 4-0 victory over the Tigers.
Jesse Hahn allowed three earned runs over six innings Wednesday in the A's loss to the Astros.
Jesse Hahn yielded six runs -- four earned -- in 5 1/3 innings Saturday in a loss to the Mariners.