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5/18/2013 10:50 P.M. ET

Hamstring strain sends Reimold to disabled list

BALTIMORE -- The Orioles placed outfielder Nolan Reimold on the 15-day disabled list with a right hamstring strain prior to Saturday's game. The 29-year-old, who hasn't played in a week, will now be sidelined for at least another nine days.

"We kept thinking it would resolve," manager Buck Showalter said of the injury, which has lingered since Spring Training. "It won't just completely go away. So with the six days we can backdate [the DL assignment], we'll try and clean it up and see if we can get it resolved completely. It's one of those things when he decels ... maybe to the naked eye up in the stands, because he runs well, you don't see it as much.

"It's something that I just want to resolve it if we can. It may not be in the nine days. And plus, after that I want to get him some at-bats and he'll tell us when he feels right."

Reimold worked hard to be a full-go this spring coming off season-ending neck surgery, and the hamstring injury has hampered him, particularly on the basepaths.

"There were times when, just walking, it would tug," Reimold said. "Going up stairs, I could feel it tugging pretty good. Then other times, it wasn't too bad. Playing, it would aggravate and tighten back up and be a real nuisance, I guess. And there were times I'd be on base, and that's why I was getting pinch-ran for at the end of the game.

"I don't consider myself a slow person, but if you've got to make that first to third or first to home, you have to be able to run and change direction. But I always went as hard as I could, to be honest. I always ran as hard as I could, but I had limitations."

Showalter said there have been several times Reimold has been hesitant to steal a base because of his hamstring, and he talked over the scenario with Reimold for the first time on Friday.

"I think he understands where we are and what we want to do," Showalter said. "I wouldn't say [he's] down, but obviously nobody wants to go on the DL. At the end of the day, he asked me what I want to do, and I said I'm going to do whatever you want me to do.

"The problem is I can't tell you whether this period will clear it up completely, but I'm frustrated for him ... [Sometimes because] of the cold weather, it would cramp up on him. It didn't really affect him hitting, but who knows?"

Reimold hit .188 in 31 games with four homers and nine RBIs, and he was 1-for-15 in his last four games.

"I had those days off where I hadn't played, and then when I did play, I wasn't exactly on base to aggravate it any more," Reimold said. "It doesn't feel too bad right now, so I'm hoping it will resolve quickly and I'll get back quick."

O's send utility player Flaherty to Minors

BALTIMORE -- The Orioles optioned infielder Ryan Flaherty to Triple-A Norfolk following Saturday's 10-6 loss, and the club will announce a corresponding roster move prior to Sunday's game.

The move is the Orioles third transaction of the day, and it's more likely that they will add another position player given that manager Buck Showalter said following the game he felt the team's bullpen -- which has pitched 29 2/3 innings in the last seven games -- was in good shape.

Flaherty has struggled offensively since the season began, and while the team likes his defense, he was replaced by Yamaico Navarro at second base for the past two games. Flaherty, a Rule 5 Draft pick last year, hit .133 in 30 games with two homers and 26 strikeouts in 90 at-bats. He opened the year 0-for-17.

If the Orioles do opt to add another position player, they could go with an outfielder, given Saturday's decision to put Nolan Reimold on the disabled list, or promote someone from Triple-A Norfolk who is versatile enough to play multiple spots. With Rays lefty Matt Moore on the mound Sunday, a right-handed bat would make sense, and Danny Valencia seems to be the most logical candidate.

Arrieta recalled from Triple-A to aid overworked bullpen

BALTIMORE -- Orioles right-hander Jake Arrieta was recalled prior to Saturday's game, where he will be used -- at least initially -- as an extra bullpen arm who can go multiple innings and help spell an overworked relief corps.

Arrieta, who made the drive from Williamsburg, Va., got the call following Friday's night's 12-10 loss -- which marked the fifth time in six games the Orioles have had a starter go five or fewer innings -- and the 27-year-old fit in for a few reasons. Arrieta, who threw a pair of sides on Wednesday and Thursday, was slated to start Triple-A Norfolk's game Saturday against Durham, so he can give the team length and is already on the 40-man roster.

"This is the guy that everybody felt like fit the description we had," manager Buck Showalter said of the decision to promote Arrieta, who had a 6.63 ERA in four big league starts this season before he was optioned on April 22. "Right now, he's here to help us in the bullpen. And we'll see what Monday brings. I shouldn't say Monday -- wherever those days fall. As long as [Miguel Gonzalez] has a good work day, we are leaning toward him on Tuesday."

Arrieta, who won the final rotation spot this spring, could be an option to start Monday against the Yankees. The Orioles have yet to name a starter past Chris Tillman on Sunday, although Monday would be Freddy Garcia's scheduled turn.

"What I really did is I started to take the emotions out of it," Arrieta said of his time in Triple-A, in which he posted a 2.75 ERA in three starts, throwing 19 2/3 innings on 16 hits and three walks with 17 strikeouts. "For me, when I was getting in high-stress situations where I needed to make quality pitches to get out of big innings, I allowed anger or over-aggression. And those sort of emotions come with a pitcher, and I basically tried to do more than I needed to to get outs.

"I went down there and really relaxed. I took the emotions completely out of it [whether] there were guys on base or nobody on base. That translated to pretty solid results, and I was throwing a lot more strikes that way as well."

Arrieta, who last pitched in a game on May 7, has been dealing with some right shoulder tenderness, but he said he's happy with how it feels now.

"I developed a little stiffness as few starts ago. It's something that has been manageable," Arrieta said. "They wanted to give me a few days, kind of push me back a little bit. I've stayed on top of it as much as I can.

"Flexibility-wise and mobility -- those are the two main things that are my focus to keep the shoulder feeling the way it is right now. I look forward to the shoulder to continue to progress and get to 100 percent. But I definitely feel a lot better than I did a few days ago."

Worth noting

• The Orioles transferred Brian Roberts to the 60-day DL to clear a 40-man roster spot for Saturday's starter Jair Jurrjens. Roberts, 35, was placed on the 15-day DL with a right hamstring strain on April 5. Alex Burnett was optioned back to Triple-A Norfolk to create a spot on the 25-man roster.

• Taylor Teagarden had the splint removed from his left thumb on Friday, although there are no imminent plans for him to go out on rehab assignment.

• Jake Pettit made Saturday's start for Triple-A Norfolk in Arrieta's place.

• Orioles Hall of Famer Brooks Robinson turned 76 on Saturday.

Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.