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06/08/12 8:19 PM ET

Holland to rebuild strength before throwing

SAN FRANCISCO -- Rangers pitcher Derek Holland will be shut down from throwing for a week while he recovers from a stomach virus.

Holland, who was placed on the disabled list Thursday, was examined by Dr. Keith Meister in Texas on Friday and tests showed nothing more than shoulder fatigue. The Rangers' main goal right now is to get Holland over his virus and start getting his strength back.

"I was generally relieved with the news," general manager Jon Daniels said. "Dr. Meister doesn't feel there are any structural issues. We want to make sure we get him right. With the weight loss and the strength loss, he was out there potentially exposed to hurting his arm. We're going to give him the time to put the weight back on and get his strength back."

The Rangers are hoping Holland can get his strength back in a week and then begin throwing again. There's no word yet if he'll need to pitch a game in the Minor Leagues on a rehab assignment.

"If he is only down for a week, he should be able to ramp up quickly," Daniels said. "I'm not too worried about that."

Alexi Ogando will replace Holland in the rotation and start Sunday against the Giants.

Rangers give Darvish extra time off

SAN FRANCISCO -- The Rangers are off Monday and will use that to give Yu Darvish extra rest. The Rangers did that with Derek Holland, Matt Harrison and Neftali Feliz earlier in the season, and they are going to do it with Darvish next week.

Instead of pitching Wednesday against the D-backs, Darvish will be pushed back and start against the Astros on Friday. Darvish is 0-2 with a 6.17 ERA in his last two starts after allowing six runs in 5 1/3 innings of a 7-1 loss to the Athletics on Thursday.

"He's fine, he just had a bad outing," manager Ron Washington said. "A couple of extra days won't hurt him. It will probably do him some good. He just had some trouble with his mechanics and couldn't make the adjustment. Usually he does. He's fine physically."

The extra days off will allow Darvish to have an extra throwing session in the bullpen. It also allows the Rangers to put him back in the rotation between Scott Feldman and Alexi Ogando, possibly reducing the strain on their bullpen. Feldman, who starts Saturday, has been averaging less than four innings in his five starts, and Ogando starts for the first time this season Sunday.

Right now the Rangers are planning to go with Colby Lewis, Harrison and Feldman during their three-game series against the D-backs that starts Tuesday at the Ballpark. Darvish, Ogando and Lewis are scheduled for the Astros series next weekend.

Rangers have no timetable for Oswalt

SAN FRANCISCO -- The Rangers are not yet ready to set a date on when Roy Oswalt will be ready to pitch in the Major Leagues. The only plan right now is for Oswalt to make his third start for Triple-A Round Rock on Tuesday at Albuquerque.

The Rangers signed Oswalt on May 29 to a Minor League contract after Neftali Feliz went on the disabled list with a sprained right elbow. The Rangers also put Derek Holland on the disabled list this week.

"Obviously with the two injuries, there is a temptation to accelerate Roy's program and go get him," general manager Jon Daniels said. "We want to make sure he's ready to come in and win at the Major League level."

Oswalt went four innings Thursay night at Omaha and allowed five runs in four innings. He gave up six hits, walked one and struck out four while throwing 56 pitches.

"He had one rough inning," Daniels said. "Overall he got his work in. The main thing is to try to extend his pitch count and get into game shape."

Oswalt will likely throw approximately 80 pitches in his next start against Albuquerque. After that, the Rangers will re-evaluate his situation.

Worth noting

• Darvish and Lewis rank second and third in the American League as far as the lowest batting average allowed with runners in scoring position. Toronto's Ricky Romero leads with a .143 batting average with runners in scoring position. Darvish is second with a .188 batting average followed by Lewis at .189.

• Outfielders Julio Borbon and Leonys Martin and infielder Tommy Mendonca were activated off the disabled list at Triple-A Round Rock on Thursday. Borbon went 2-for-4 and took a 16-game hitting streak into Friday's game.

• As of Friday afternoon, the Rangers had just 1,500 reserved tickets left for next Friday's game against the Astros. There are only scattered singles and obstructed-view seats left for Saturday and 4,500 tickets remaining for Sunday.

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.