RHP Jesse Hahn (strained right shoulder) threw a 30-pitch bullpen session Saturday and will likely begin a rehab assignment early next week. "We'll see how he feels tomorrow," A's manager Bob Melvin said. "If he feels good, then we'll send him out on a rehab assignment." Hahn has been on the 15-day disabled list since Aug. 5. Barring a setback, he'll probably need only one rehab start before being

RHP Jesse Hahn (strained right shoulder) threw a 30-pitch bullpen session Saturday and will likely begin a rehab assignment early next week if he feels good Sunday, Melvin said.

RHP Jesse Hahn (strained right shoulder) will throw his first bullpen session Saturday since going on the 15-day disabled list Aug. 5. If all goes well, Hahn will make one rehab start and then return to the A's rotation, manager Bob Melvin said Friday. Hahn is 2-4 with a 6.02 ERA.

RHP Jess Hahn (strained right shoulder) will throw his first bullpen session on Saturday since going on the 15-day disabled list Aug. 5. Hahn said he's confident that he'll be healthy enough to be activated on Aug. 20, the first day he's eligible to come off the DL.

RHP Jesse Hahn (strained right shoulder) will throw his first bullpen session on Saturday since going on the 15-day disabled list Aug. 5. According to manager Bob Melvin, Hahn will likely make a rehab start next week and be activated on Aug. 20, the first day's he's eligible to come off the DL, or soon after.

RHP Jesse Hahn (strained right shoulder) was placed on the 15-day disabled list Friday. Hahn was recalled from Triple-A Nashville on Thursday and started against the Angels. He gave up five runs on seven hits over four innings and felt tightness in his shoulder. His velocity dropped from the mid-90s to 90 mph by his final inning, A's manager Bob Melvin said. "We just want to be proactive and cautious," Melvin said. "Put him on the DL and make sure that when this period's over everything's good." Hahn said he's optimistic that he'll be ready to pitch again when he's eligible to be activated. "Something very minor," Hahn said. "Yesterday the shoulder tightened up on me a little bit. (Velocity) dropped. Honestly, it didn't feel like anything out of the ordinary. I guess it just looked bad. I don't feel like I'm in any pain. I don't think this is going to hold me back. I compare it to just a tired shoulder. Fatigue. That's it." Hahn is 2-4 with a 6.02 ERA in nine starts over four stints with the A's this year.

RHP Jesse Hahn gave up five runs on seven hits and three walks in four innings, getting a no-decision Thursday against the Angels. Angels LF Ji-Man Choi homered twice against him. The second was a three-run homer in the third inning that gave Los Angeles a 5-2 lead. "Going into the start today, I just knew I didn't have my best stuff, I didn't feel right in the bullpen," Hahn said. "I kind of knew it was going to be a grind right from the start. For me, I just tried to do the best I could to keep the team in the game."He was called up from Triple-A Nashville before the game.

RHP Jesse Hahn will be called up from Triple-A Nashville on Thursday to start against the Angels. It will be Hahn's fourth stint with Oakland this season. He is 2-1 with a 2.77 ERA in four daytime starts and 0-3 with a 9.92 ERA in four nighttime starts. Thursday's game starts at 4:05 p.m. PDT. Hahn is 1-0 with a 2.84 ERA in two career starts against the Angels, both coming last season.

RHP Jesse Hahn, who was recalled Sunday for a start against the Rays, was optioned back to Triple-A Nashville on Monday. He allowed one run over 7 2/3 innings and got a no-decision in his first start for the A's since June 8. Hahn struck out five, walked one and threw 90 pitches in Oakland's 3-2 victory. He is 2-4 with a 5.53 ERA in eight starts for Oakland this year.

RHP Jesse Hahn, who was recalled Sunday from Triple-A Nashville, allowed one run over 7 2/3 innings and got a no-decision in his first start for the A's since June 8. Hahn struck out five, walked one and threw 90 pitches in Oakland's 3-2 victory. Hahn had gone 2-4 with a 6.49 ERA in two previous stints with the A's this season after going 6-6 with a 3.35 ERA in 2015. "I just feel great right now," Hahn said. "I've been working on a lot of things in Nashville. Kind of trying to get back to where I was last year. I think they're all starting to come together. I'm kind of getting in that rhythm, getting in that groove now." Hahn, who was drafted by Tampa Bay in 2010 then traded to San Diego in 2014, faced the Rays for the first time in his career.

RHP Jesse Hahn, who will be officially recalled from Triple-A Nashville on Sunday and start against Tampa Bay, rejoined the A's in Oakland on Saturday. This will be Hahn's third stint with the A's. He's 2-4 with a 6.49 ERA with the A's this season and 1-5 with a 3. 63 ERA in 12 starts with Nashville. "There was a month stretch where I was trying to figure things out," Hahn said. "Too many mechanical adjustments. I think it became a little mental. And I finally realized that there were some small adjustments I needed to make, and I was just pitching, keeping the ball down and throwing strikes. I got into a little rhythm, which I've been kind of looking for all year."

RHP Jesse Hahn will be called up Sunday from Triple-A Nashville to start for the A's in the series finale against Tampa Bay. Hahn, who was sent down on June 10, is 2-4 with a 6.49 ERA in seven starts this season for the A's after going 6-6 with a 3.35 ERA in 16 starts last year. "He's been working on a lot of things, getting the ball down," A's manager Bob Melvin said Thursday. "He's incorporating his other pitches. Just got a little out of synch, as we've seen this year. We also know he's got quite a track record of pitching well at the big league level. Hopefully this is the start of a nice run for him."

RHP Jesse Hahn will be called up Sunday from Triple-A Nashville and start for the A's in the series finale against Tampa Bay. Hahn, who was sent down on June 10, is 2-4 with a 6.49 ERA in seven starts this season for the A's after going 6-6 with a 3.35 ERA in 16 starts last year.

RHP Jessie Hahn was optioned to Triple-A Nashville on Friday after going 2-4 with a 6.49 ERA and a .331 opponents' batting average combined over two stints with the Athletics. He tossed 3 2/3 innings and two-thirds of a frame in his last two starts. "We saw last year, when he pitches well, he performs at a high level," manager Bob Melvin said. "When he's giving us four-plus innings, it taxes the bullpen, there are ramifications for that. He just wasn't himself."

RHP Jesse Hahn allowed a career-high seven runs in the shortest outing of his career. Hahn recorded just two outs with his previous shortest outing including his lasting 3 2/3 innings twice, the last time coming against the Rangers on June 10, 2015. Hahn had allowed six runs twice before, the last time coming on May 9, 2015 at Seattle.

RHP Jesse Hahn benefitted from a five-run sixth inning to record his second win of the season Saturday against the Detroit Tigers. Hahn had blown a 3-1 lead in the top of the sixth inning by allowing a game-tying, two-run homer to DH Victor Martinez. But he recovered to retire the next three men he faced to finish the inning, which allowed him to record the win when the Oakland offense exploded in the bottom of the sixth. Hahn gave up three runs on five hits and four walks in his six innings. He struck out five.

RHP Jesse Hahn was a victim of a manager overusing his bullpen Sunday in a 5-4 loss to the Yankees. Hahn had limited the Yankees to two runs on four hits through five innings before giving up consecutive one-out singles to LF Brett Gardner and DH Carlos Beltran in the sixth. The A's led 3-2 at the time. Oakland manager Bob Melvin allowed Hahn to pitch to Yankees C Brian McCann, who earlier had homered, and the young right-hander recorded a strikeout for a second out. However, Melvin then pulled Hahn after just 73 pitches, and RHP John Axford gave up two consecutive hits to blow the lead. In the end, Hahn was handed his second defeat of the season.

RHP Jesse Hahn will make his fourth start of the season Sunday when he faces the Yankees. Hahn is 1-1 with a 3.38 ERA in his return to the majors after missing the last three months of 2015 with a strained right forearm. He last pitched Tuesday against Texas when he allowed three runs and 10 hits in 6 2/3 innings. Hahn's lone appearance against the Yankees was a 5-3 home loss on May 30, when he allowed four runs and seven hits in six innings.

RHP Jesse Hahn, who was recalled Tuesday from Triple-A Nashville, allowed three runs on 10 hits over 6 2/3 innings and got a no-decision in Oakland's 8-5 victory against Texas on Tuesday night. Hahn struck out two, walked one and gave up two solo home runs. He is 1-1 with a 3.38 ERA.

RHP Jesse Hahn will be called up from Triple-A Nashville to start Tuesday against Texas, A's manager Bob Melvin said Monday night. Hahn will start in place of LHP Eric Surkamp, who will be sent to Nashville and rejoin that rotation. Hahn is 2-2 with a 3.75 ERA. Hahn had been sent down to Nashville on May 8. Because Hahn hadn't spent 10 days in this minor league stint, the A's had to place a player (C Josh Phegley) on the disabled list in order to call him up.