DeRosa was pulled from Tuesday's game because of tendinitis in his left hamstring. He felt some discomfort just behind his left knee during batting practice, but started against the St. Louis Cardinals and grounded out in his only at-bat. He was lifted defensively in the third inning.
"I'm all right," DeRosa said Wednesday. "I just felt something in [batting practice] and brushed it off as no big deal and that it would go away. That first at-bat, I could feel it, and when I hit the ground ball, I had to get after it getting to first base. They took me out as a precaution."
He was not in the starting lineup Wednesday, which is a rarity this year. DeRosa has started 49 games at second, 24 at third, 14 in right, nine at first and one at shortstop. He's too valuable to sit.
"I would think today and [Thursday]," Cubs manager Lou Piniella said about how long DeRosa will be out of the lineup. "If we can get him ready by Friday, I'll be pleased."
DeRosa has had his share of freak injuries. In May, he was sidelined with a strained ligament in his right ring finger. In June, he was pulled from a game because of blurred vision.
"I get the weirdest things," DeRosa said.
Last season, DeRosa played six different positions for the Texas Rangers. When he signed with the Cubs, DeRosa thought he wouldn't need all his gloves.
"When I signed, I was under the impression I would play second base," DeRosa said. "I got to Spring Training, sitting down with Lou and going over my role, he laid it out that I was going to play third if [Aramis Ramirez] got hurt or needed a day off. Now that this is the role, moving around, it's something I'm comfortable with. I enjoy it. I have no problem with it at all.
"I've committed myself to the fact that this is how I help the team the best and if it keeps me in the lineup every day, then I'm fine with it," he said.
Step by step: Cubs general manager Jim Hendry said Kerry Wood reported no problems on Wednesday, the day after throwing 12 pitches in one inning for Class A Peoria. Wood walked one and faced four batters, plus he was credited with the win in the Chiefs' 9-3 win over Fort Wayne.
The next step is for Wood to pitch Thursday and Friday for Peoria. Hendry will be at Friday's game. The Cubs aren't sure how much time the right-hander needs before he can return to the big leagues.
"We'll regroup after that and get a plan together," Hendry said. "If he goes through that, he might not be too far away. I can't see it happening right after Peoria."
"It'd be a nice story," Piniella said, if Wood can come back. "It'd be a nice pickup. You've got an experienced pitcher, a nice fresh arm."
Backstop: Catcher Koyie Hill started Wednesday, and the plan is to have him alternate with Jason Kendall behind the plate.
Kendall was batting .226 with Oakland. Since joining the Cubs, he was 1-for-15.
"He's probably trying to impress," Piniella said. "We'll give him some time to work with Gerald [Perry, hitting coach]. I'm going to play Kendall and Hill every other day for a little bit and see if we can get Kendall's bat going that way."
Kendall and Perry were together last season in Oakland.
Extra bases: The Cubs are 12-6 in their last 18 one-run games after beginning the season 2-12. ... Albert Pujols went 0-for-5 Tuesday vs. the Cubs. "Any time you can hold him to an 0-for-5, you know you're making good pitches on him," Piniella said. ... Piniella picked up career win No. 1,571 on Tuesday, and is tied for 17th with Dick Williams on baseball's all-time list. ... Wade Miller will make a rehab start Wednesday for Double-A Tennessee.
Minor matters: Sean Gallagher gave up one run on five hits and one walk over four innings in Iowa's 10-3 win over Colorado Springs on Tuesday. Eric Patterson went 5-for-6 with four RBIs, and Geovany Soto hit a three-run homer in the eighth. ... Tennessee's game against Carolina on Tuesday was postponed by rain. ... Daytona's game against Palm Beach on Tuesday was postponed because of rain. ... Leon Johnson and Ryne Malone each had three hits in Peoria's 9-3 win over Fort Wayne on Tuesday. ... Chris Huseby gave up four runs, two earned, on six hits over 4 2/3 innings on Tuesday in Boise's 9-3 loss to Spokane.
On deck: Jason Marquis will start the series finale of the Cubs' three-game series against the Cardinals at Busch Stadium. Marquis is 3-0 with a 2.08 ERA in his career against his former team, including a 2-0 mark this season. First pitch is scheduled for 7:10 p.m. CT, and the game will be broadcast on Comcast Sports Net.
Carrie Muskat is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.