Baseball

Cubs ace Zambrano to miss next start

The Chicago Cubs will be without starting pitcher Carlos Zambrano for his next scheduled start due to shoulder problems.

The Chicago Cubs will be without starting pitcher Carlos Zambrano for his next scheduled start due to shoulder problems.

Zambrano, 27, left the Cubs' game on Wednesday night against the Tampa Bay Rays in the seventh inning with discomfort in his right shoulder. He was examined by team orthopedist Dr. Stephen Gryzlo on Thursday and will undergo an MRI arthrogram on Friday. 

He was scheduled to have an MRI exam on Thursday but the team elected to instead go with the arthrogram, a test in which dye is injected into the problem area to provide a more detailed look.

"I hope it's not serious," Cubs manager Lou Piniella said. "I hope we find out what's wrong and we can take care of it in short order."

Zambrano's next start was scheduled for Tuesday night at Wrigley Field against the Baltimore Orioles, but the Chicago manager doesn't think his ace will be ready.

"I don't think there's a possibility at all," Piniella said before their game Thursday.

Zambrano is 8-3 with a 3.13 ERA in 16 starts for the NL Central leaders. He posted a career-best 18 wins in 34 starts during the 2007 season.

Chicago recalled left-handed pitcher Sean Marshall from triple-A Iowa and he is expected to replace Zambrano as Tuesday's starter against Baltimore.

With files from the Associated Press