"We're just looking for him to compete and not have any repercussions from the hamstring," manager Ron Washington said. "If there are no problems Sunday, then we'll make a decision. We need him very badly."
Millwood was on the disabled list from April 29 to May 14 with a hamstring injury, but re-injured himself in his first start back. That's why the Rangers want him to pitch on a medical rehabilitation assignment.
"It's not something I want to do, it's something I was asked to do, which is fine," Millwood said. "I don't have any pain where it was, I just have some soreness from working out and strengthening it. Other than that, it's fine.
"Physically, I'm ready. On Sunday, I'm just going to go out there and see if everything holds up. It's more of building up arm strength and working on pitches. I don't think there's a need to test anything."
Wood last pitched for Oklahoma on Thursday, allowing three runs in 7 1/3 innings in a 3-2 loss to Omaha. He allowed four hits, walked two and struck out two and is now 3-1 with a 2.58 ERA in six starts for the RedHawks. He is 0-1 with a 7.02 ERA in four games, including three starts, for the Rangers this year.
"I'm very comfortable with Woody," Washington said. "He'll leave everything he has out there on the mound. If he's got it, he'll be fine, just like anybody else. He'll pound the strike zone with everything he has and do everything he can to compete."
Hairston, Mahay close:
The Rangers could also get both Jerry Hairston (pinched nerve) and Ron Mahay (strained ribcage muscle) off the disabled list on the next road trip.
Mahay, who has been working out in Surprise, Ariz., pitched one inning in an extended Spring Training game on Friday and is scheduled to pitch two innings on Sunday. If that goes well, the next step could be to activate him.
Hairston is scheduled to join Frisco on a medical rehabilitation assignment on Saturday. He'll spend two days with Frisco, then continue the assignment with Oklahoma. He is not eligible to come off the disabled list until Friday.
Second baseman Ian Kinsler went into Friday's game with 10 home runs, but he was also tied for the American League lead with five sacrifice bunts.
Only four players in Rangers history have had at least 10 home runs and 10 sacrifice hits in a season: Kevin Elster (24-16 in 1996), Steve Buechele (18-10 in 1991), Royce Clayton (14-12 in 2000) and Juan Beniquez (11-10 in 1978).
Sosa in OF:
The Rangers still aren't ready to return Frank Catalanotto to the outfield. Catalanotto, who was sidelined for three weeks because of tendinitis in his right arm, was in the Rangers lineup on Friday but as the designated hitter. Sammy Sosa was in right field and will be there again on Saturday. The Rangers are hoping Catalanotto can play the outfield by Sunday.
Briefly: b> The Rangers went into Friday's game with a record of 13-2 when they score seven or more runs and 5-17 when they score less than seven runs. ... The Rangers are expected to face right-hander Chad Gaudin, left-hander Lenny DiNardo and right-hander Danny Haren during their three-game series with the Oakland Athletics on Monday.
He said it:
"I have no idea what a gyro ball does or how it moves. I could really care less."
-- First baseman Mark Teixeira, on Daisuke Matsuzaka
Thursday's Minor Stars:
Top performances from Thursday's Minor League games.
Gold: Catcher Salomon Manriquez went 3-for-4 with two runs scored and three RBI in Double A Frisco's 11-4 victory over Wichita.
Silver: Reliever Jeremiah Haar threw 4 1/3 scoreless innings in relief for Class A Clinton in the LumberKings' 5-4 victory over the Fort Wayne Wizards.
Bronze: Outfielder Kevin West was 3-for-7 with a home run in two games as Triple-A Oklahoma was swept by Omaha in a doubleheader.
Right-hander Vicente Padilla pitches for the Rangers at 7:05 p.m. CT on Saturday against the Boston Red Sox at Rangers Ballpark in Arlington. Knuckleballer Tim Wakefield pitches for the Red Sox.