© 2014 MLB Advanced Media, L.P. All rights reserved.

4/18/2014 8:15 P.M. ET

Rangers call up Poreda to shore up bullpen

ARLINGTON -- The Rangers called up left-handed reliever Aaron Poreda to help out in their bullpen for the next four days and ease the workload of Neal Cotts and Pedro Figueroa.

Cotts pitched in seven of the Rangers' first 14 games before getting two days off. Cotts and the Rangers said there is nothing physically wrong, but that he just needed a couple of days off. He is expected to be available on Friday against the White Sox, if needed. While Cotts was getting time off, Figueroa pitched in three of four games against the Mariners.

"We felt like we needed another left-hander," Rangers manager Ron Washington said.

Poreda, who was called up after Tanner Scheppers went on the disabled list Friday, pitched in five games at Triple-A Round Rock. He allowed three runs in one game but there other four were scoreless outings, including the last three.

"He was throwing the ball well," Washington said. "He has good velocity and has an idea of how to pitch."

Poreda is in the big leagues for the first time since 2009, when he appeared in four games with the Padres. He previously appeared in 10 games for the White Sox that season, before being one of four players traded to the Padres for Jake Peavy at the July 31 Trade Deadline.

Poreda, who was the White Sox's first pick in the 2007 First-Year Player Draft, missed all of last season after undergoing Tommy John elbow reconstruction surgery in October 2012. He signed with the Rangers as a Minor League free agent in the offseason.

"It's awesome, I'm excited to be here," Poreda said. "This is definitely a second opportunity for me and I'm going to make the most of it and be the best I can be. I'm ready for anything and everything."

The Rangers decided against calling up Neftali Feliz, who has a 1.59 ERA in five appearances at Round Rock. They still want him to work on a number of things, including his endurance, stamina and mechanics.

"We talked about that," general manager Jon Daniels said. "We feel like he's close. Kind of like we talked about in spring training, we really want to make sure he's ready."

Harrison set to make third rehab assignment

ARLINGTON -- Matt Harrison, on the disabled list while recovering from last year's back surgery, will make his third rehab assignment with Double-A Frisco on Saturday night and will take a simple approach to the outing.

"One pitch a time," Harrison said. "I'm not worried about innings or pitch counts. I just want to focus on one pitch at a time. I've been getting caught up with that other stuff and it hasn't been doing me any good."

Harrison's first rehab start was rained out after two innings. He has pitched eight innings over his other two starts and allowed four runs (three earned) on nine hits, three walks and five strikeouts. There has been much talk about Harrison needing to get his pitch count up, but the Rangers also want to see results. So does Harrison.

"I want to pitch like I know how to pitch," Harrison said. "Pitch like I'm pitching [in the big leagues]. I'm not worried if I get 95 pitches in six innings. I'm not thinking about that stuff. When they think I'm ready, that's when I'll be back here. It doesn't matter what I think."

Saunders heading to Arizona to continue rehab

ARLINGTON -- The Rangers are sending pitcher Joe Saunders to Arizona to continue his rehab at their complex in Surprise. Saunders lives in the Phoenix area, his wife just gave birth to their third child and he is still not ready to come off the disabled list.

Saunders is sidelined with a bruised left ankle and hasn't pitched since April 4. He will likely need at least one start on a rehab assignment before he returns to the Major Leagues.

"He's been able to keep his arm going," general manager Jon Daniels said. "The ankle's not ready yet for him to go out in a game. He can do a lot of things he needs to do but he's not game ready. He'll go out to Arizona, work out in Surprise. It's relatively convenient for him, just having had a baby girl. He lives out there. He can work out there until he's ready to go on a rehab assignment."

Saunders made his only start against the Rays on April 4 and had to leave the game in the fourth inning after getting hit by a shot off the bat of Evan Longoria. Saunders did not expect to be out this long, but the ankle hasn't healed as quickly as he expected.

"This is the first non-arm injury in my life," Saunders said. "Usually when you're on the disabled list, it's for a sore shoulder or a sore elbow. I can see that but for a foot, it's definitely frustrating. I've got to be patient."

Worth noting

• Third baseman Adrian Beltre, who is on the disabled list with a strained left quad muscle, is not running at full speed, but is able to do all baseball activities. He is expected to be ready to come off the disabled list on April 25, when the Rangers open a three-game series against the Mariners in Seattle.

• Pitcher Cody Buckel has been placed on the disabled list at Class A Myrtle Beach with a sprained left ankle and has been replaced in the rotation by pitcher Will Lamb. Buckel was a second-round Draft pick in 2010, while Lamb was taken in the second round in 2011. He started the season in extended Spring Training but was 5-3 with a 5.17 ERA in 39 appearances for Myrtle Beach.

Buckel had made three starts for the Pelicans and was 0-1 with a 6.75 ERA while walking 14 and hitting two in 6 2/3 innings. The Rangers want him to use the time to work on his mechanics with Minor League pitching coordinator Danny Clark and Myrtle Beach pitching coach Steve Mintz.

• Washington gave Jim Adduci, a left-handed hitter, his first start of the season on Friday. Adduci played right field, Alex Rios started at designated hitter and Mitch Moreland was out of the lineup. It's the first time Moreland hasn't started against a right-handed pitcher this season.

Derek Holland, who is on the disabled list while recovering from January knee surgery, is throwing bullpen sessions in Arizona, but is not yet ready to face hitters. Holland is just beginning to take fielding practice. Said Daniels, "The arm is ahead of the knee. We've got to get the legs in shape."

Daniel Bard, the former Red Sox reliever signed by the Rangers to a Minor League contract this winter, has been throwing bullpen sessions in Arizona, but is also not ready for games. He had Thoracic Outlet Syndrome surgery on his right shoulder on Jan. 2.

• The Rangers have designated Triple-A infielder Andy Parrino for assignment to make room on the 40-man roster for pitcher Aaron Poreda.

T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.