"Third baseman Scott Rolen was scratched from the Reds' lineup Saturday with concussion-like symptoms just before the game.

He'll be re-evaluated today in Cincinnati by concussion specialist Dr. John Brannan.

"It's the same thing he's been going through," Reds manager Dusty Baker said. "He didn't feel too good after the game last night. He took batting practice but he's not feeling like himself. It's not surprising. Your brain gets a little rattled when you get hit like that."

Rolen was hit flush on the helmet by a 92 mph fastball from Colorado's Jason Marquis a week ago.

Baker said there's a possibility that Rolen will rejoin the team in St. Louis, where the Reds open a three-game series Monday.

"He could," Baker said. "I'm sure he'll want to."

It would be Rolen first trip back to St. Louis since he was traded to Toronto in 2007."