ARLINGTON -- Martin Perez will get three to four days off and go into the Rangers' bullpen. Perez allowed one run over six innings in a start against the Red Sox on Tuesday, and finished with 98 pitches.

But Roy Oswalt is returning to the rotation on Sunday after missing a start because of tightness in his lower back, and Scott Feldman is also being used as a starter. That means Perez has to go to the bullpen.

"We're not going to six starters," Rangers manager Ron Washington said.

Perez is unavailable for a few days, but Washington said the Rangers' bullpen is sufficiently rested and did not need to go get a fresh reliever. The Rangers have an off-day on Thursday, then follow up with Yu Darvish in the series opener on Friday against the White Sox, and Matt Harrison on Saturday.

"Hopefully they can take it deep," Washington said.

Perez is 1-1 with a 4.26 ERA in three starts and two relief appearances during his two stays with the Rangers this season. He may not be here much longer, because the Rangers are hoping Mark Lowe will be ready to come off the disabled list by the end of the homestand. He is expected to pitch Sunday for Double-A Frisco on a rehab assignment.

Hamilton understands why Ryan is frustrated

ARLINGTON -- Rangers president and CEO Nolan Ryan was the latest to chime in on Josh Hamilton's struggles at the plate, saying on his weekly radio show that Hamilton's at-bats aren't "very impressive," and he doesn't seem to be locked in at the plate. Hamilton said he understands Ryan's frustrations and he feels the same way.

"I love and respect Nolan to death," Hamilton said on Wednesday. "He's a competitor. He's still a competitor. He was a big-time competitor when he played. I believe he cares so much for us as players, almost like a grandfather would. When he sees us not perform and not do the things we need to do, it frustrates him.

"I understand what frustrates him. I can't blame him for anything. I'm just going to do what I can do and work on what I can work on, go up there and try to be a little more focused and do the best I can. It doesn't bother me that he expresses his opinions."

Hamilton entered Wednesday hitting .135 (7-for-52) with two home runs over his last 14 games to drop his batting average to a season-low .290. He is hitless in his last 16 at-bats with runners in scoring position. He drove in a run on Tuesday night with a weak ground ball, but reacted in frustration by throwing his helmet in the dugout.

"I just feel out of sorts mentally," Hamilton said. "You get in trouble when you start thinking about stuff. It's the mental aspect of it more than the physical aspect of it. That's just where I am right now."

Hamilton said it all comes down to good pitch selection and getting in a good hitting position.

"When I'm swinging at pitches out of the zone and hitting them, it's not a big deal," Hamilton said. "But when I'm swinging at pitches out of the zone and I'm missing them, it's a big deal. I'm focusing on bringing the pitchers back to having to throw me strikes, or at least something close enough that I can do something with it.

"They all know they can throw me questionable pitches and, more than likely, I'll swing at them. When I'm going good, they can do that and I'll get hits. When I'm not going good, I get myself out."

Feliz likely to make two more rehab starts

ARLINGTON -- The Rangers were happy with the reports they received on pitcher Neftali Feliz from his start for Triple-A Round Rock on Tuesday, but he is not ready to return to the big league club. The current plan is for him to get two more starts, with the next one on Sunday for Round Rock at Memphis.

Feliz threw three scoreless innings against Albuquerque on Tuesday, allowing one hit and a walk while striking out three. He threw 54 pitches. In his previous outing, Feliz pitched just 1 2/3 innings and allowed four runs.

"This was far better," Rangers pitching coach Mike Maddux said. "Much more intensity, much more of a professional approach, a lot more competing, much better on the attack."

The Rangers are hoping Feliz can throw 75-80 pitches over five innings and then have one more start before he is activated. He has been on the disabled list since May 19 with a sprained right elbow.

"I got a lot better," Feliz sid. "Last time, I wasn't throwing my pitches in the strike zone. This time, I was having good results. I feel better since I lost five pounds. I'm trying to get strength on my body. That's something I think I need to work on."

Beltre in lineup night after beaning

ARLINGTON -- Third baseman Adrian Beltre was back in the lineup on Wednesday, one day after getting hit in the back of the head on a pitch thrown by Red Sox reliever Vicente Padilla. Beltre, who was hit in the eighth inning of the Rangers' 2-1 loss, had to leave the game, but was cleared to play on Wednesday.

"I got up this morning and I felt fine," Beltre said. "It didn't look pretty, but there's nothing wrong with me. I thought I was going to have to fight my way into the lineup, but I'm fine."

Beltre reiterated that he did not think Padilla was deliberately throwing at him. Beltre was batting with two outs and a runner on third with the game tied at 1 when he was hit.

"It just got away," Beltre said. "He already knows me, but I don't think he did it on purpose. We know his reputation, but I think, based on the situation, he wouldn't hit me on purpose. Plus, I don't have a history with him.

"I've got two strikeouts. I was trying to hit the ball up the middle, so I have to see the ball to be able to do that. It wasn't a slow breaking ball, so I couldn't just turn my head around. I wasn't expecting the pitch. When I saw the ball coming at me, I just tried to turn my head and my face and turn my shoulder, but it was too late."

Beltre is the Rangers' cleanup hitter. In the first inning of Wednesday's game, Rangers pitcher Derek Holland hit Red Sox cleanup hitter Adrian Gonzalez. Holland's pitch hit Gonzalez on the hip.

Worth noting

• First baseman Mitch Moreland's wife, Susannah, gave birth to the couple's first child on Wednesday afternoon. They had a son, Crue Howell.

• Triple-A Round Rock right-handed reliever Fabio Castillo was activated from the disabled list Wednesday. He has been out since July 8.

• Rangers starters are 20-0 in 23 games where they have allowed one or fewer runs in at least six innings. The team's three pitchers to get no-decisions when that happens are Colby Lewis, Matt Harrison, and Martin Perez, who gave up one run over six innings in Tuesday's 2-1 loss to the Red Sox.

• Elvis Andrus' current 12-game hit streak is tied with the Marlins' Jose Reyes for the longest in the Majors, and is the Rangers' second-longest streak this season. Josh Hamilton had a 16-game hit streak from April 17-May 16.

• After the Rangers issued two walks in the first 17 innings of their series against the Red Sox, Joe Nathan walked a pair of batters in the ninth inning on Tuesday. That broke Nathan's streak of 80 straight appearances without multiple walks.