Sean Doolittle RP OAK 6 Days

The A's placed Doolittle (oblique) on the 15-day disabled list Sunday, MLB.com's Jane Lee reports.

The A's have not announced ow much time Doolittle is expected to miss with the setback, but it seems likely he will be given as much time as needed to get back to full strength by the postseason. No announcement about Doolittle's replacement has been made, but Luke Gregerson is the favorite to take over the closer's role for the A's.

Sean Doolittle RP OAK 6 Days

Doolittle (oblique) will likely be placed on the disabled list, Susan Slusser of the San Francisco Chronicle reports.

The full extent of Doolittle's oblique injury remains uncertain, but it appears he is set to miss at least the next couple weeks due to the setback. Luke Gregerson appears to be the top option to see the ninth-inning duties in Doolittle's absence.

Sean Doolittle RP OAK 6 Days

Doolittle (oblique) underwent an MRI on Sunday, Susan Slusser of the San Francisco Chronicle reports.

Doolittle hasn't shown much improvement from the cramping in his oblique a night earlier, so the Athletics will examine him more closely to see if he's dealing with an intercostal strain. If the MRI indeed reveals a serious oblique injury that results in a DL stay, manager Bob Melvin said he would decide on a fill-in closer rather than using a committee. Luke Gregerson would seem to be the top candidate to take his spot at the back of the Oakland bullpen.

Sean Doolittle RP OAK 7 Days

Doolittle (oblique) felt a cramp in his right side after the second-last pitch of Saturday's game against the Angels, Jane Lee of MLB.com reports. However, he is feeling better, passed some initial tests, and isn't worried it's anything serious.

Excellent news for fantasy owners and the A's, who just grabbed a share of the AL West lead with the Angels with Saturday's win. It sounds like he should be fine but will enjoy an off day Sunday after pitching two days in a row. Barring any setbacks, it should be safe to get "The Doctor" back in your lineup Monday.

Sean Doolittle RP OAK 7 Days

Doolittle slammed the door for his 20th save of the season Saturday against the Angels, allowing a single and striking out one. However, he appeared to be in some discomfort after fielding a ground ball for the final out of the game, and was seen on camera saying "yeah" when catcher Daniel Norris asked him, "oblique?"

Owners will need to sit tight waiting for more information to surface about Doolittle and if, in fact, he suffered some sort of injury Saturday. Oblique and abdominal issues can vary widely from minor stiffness that can be played through to more major strains or tears that require long-term stints on the DL, so keep your fingers crossed. Either way, there's a good chance he gets a rest Sunday as the closer has pitched two days in a row.

Sean Doolittle RP OAK 11 Days

Doolittle pitched a scoreless ninth inning, allowing one hit before striking out the side in a non-save situation in Tuesday's game against the Mets.

Having not pitched in five days, the A's needed Doolittle to get in some work. Doolittle has been dominant of late, having not given up a run in 11 appearances (11.1 innings) and now owns a 2.35 ERA, 0.65 WHIP and astonishing 77:4 K:BB ratio in 53.2 innings pitched this year.

Sean Doolittle RP OAK 22 Days

Doolittle snagged his 18th save of the season where he gave up one hit and struck out two hitters in an inning pitched.

Athletics GM Billy Beane continues to look like a genius as the transformation of Doolittle into one of the better relievers in the game is awe inspiring. Doolittle (2.44 ERA, 73K in 51.2 IP)is in no danger of losing his job as the A's closer.

Sean Doolittle RP OAK 25 Days

Doolittle struck out one over a perfect ninth inning to pick up his 17th save of the year on Tuesday.

Doolittle needed just 12 pitches (8 strikes) to retire the Rays in order. It was just another day at the office for the stud closer. He's now 17-for-20 in save situations while posting a 2.49 ERA, a ridiculous 0.63 WHIP, and a 71:4 K:BB over 50.2 innings.

Sean Doolittle RP OAK 1 Month

Sean Doolittle stemmed the tide of a five-run Astros comeback attempt to earn his 15th save in Wednesday's win.

Bob Melvin sent in the maligned Jim Johnson with a 9-2 lead in the top of the eighth inning. Surely, a seven-run cushion made it safe to use the former closer. But no. Johnson surrendered four runs (three earned) on four hits without recording an out. By the time Oakland got out of the frame, the score was 9-7, a lead Doolittle was tasked with protecting. He fired a perfect ninth, striking out one. Doolittle is 15-for-18 in save conversions to go with a 2.70 ERA and 0.64 WHIP.

Sean Doolittle RP OAK 2 Months

Sean Doolittle got four outs for his 14th save on Sunday, closing out a win over the Mariners.

Doolittle entered with two runners on and two outs in the eighth inning, getting Kyle Seager to pop out to end the threat. He worked a perfect ninth for his 14th save. The lefty has a 2.89 ERA, 0.66 WHIP and 63/2 K/BB ratio over 43 2/3 innings this year, and he enters the second half firmly entrenched as the A's closer.