Cubs' Castro pulls up with hamstring tightness

Castro left in the bottom of the fourth inning after pulling up on a ground ball to shortstop Wednesday during an 11-7 loss to the Los Angeles Dodgers.

The Cubs said their shortstop had left hamstring tightness.

"It was a little bit tight but not too bad," Castro said. "I felt it when I touched the base. It scared me. I don't want to be hurt. I feel too good this year."

Castro, who was the designated hitter, played in 162 games last and expects to do so again this year.

"He was jogging around in the training room a little bit," Cubs manager Dale Sveum said. "It was more tight than a pull or anything. He pulled up quite a bit, and he was kind of hobbling, but it doesn't seem like a big deal at all. Certain players love to play period. He is one them guys and there is no taking him out of the lineup. He begged for the third at-bat and looked what happened."

Castro said he never had experienced a similar injury and thought conditioning may have been a factor.

"It felt like a Charlie horse. Nothing bad," he said. "I worked too much in the Dominican, running a lot."

Aaron Harang, bidding for a spot in the Dodgers rotation, allowed four runs, five hits and a walk in the first, then threw a 1-2-3 second. He was 10-10 with a career-best 3.61 ERA last year.

He tightened up during the top of the first.

"I felt like I was having a hard time getting loose again," he said of the bottom half. "It felt like it took to the middle of the inning before I was getting anywhere loose."

Jerry Hairston Jr. hit a two-run double off Trey McNutt in the second inning and added a sacrifice fly in the third. Darwin Barney had two singles and two RBIs.

Alfredo Amezaga had three hits and two RBIs for the Dodgers, who trailed 4-1 after the first but led 8-4 in the middle of the third.