Just about the time the Chicago Cubs get someone off the disabled list, another goes on.
A day after activating catcher Geovany Soto, the Cubs placed right-hander Carlos Zambrano on the 15-day disabled list Saturday with muscle spasms in his back. The move is retroactive to Aug. 2.
Zambrano (7-4) was scheduled to pitch against Colorado on Friday but was scratched 15 minutes before the game with lower-back stiffness.
It's Zambrano's second trip to the disabled list this season. He was out in May with a left hamstring strain. Zambrano is scheduled to have an MRI today.
"Hopefully what he has is not serious and he'll be all right in a couple of weeks," Cubs manager Lou Piniella said.
HAMILTON TALKS ABOUT RELAPSE: Texas Rangers outfielder Josh Hamilton once again addressed his troubled history with alcohol abuse, after a Web site published photos of him cavorting with several scantily clad women in a bar last January. Hamilton created headlines last season with his inspired comeback from the depths of alcoholism and drug abuse to lead the major leagues in RBIs and nearly win the Home Run Derby.
The All-Star stood at his locker at Angel Stadium a couple hours before game time Saturday and talked about how much he regretted what happened at a bar in Tempe, Ariz. Prior to this latest episode, Hamilton said he hadn't drank since Oct. 6, 2005.
"I always knew there would be a chance it would come out," said Hamilton, who has three daughters. "I believe I got to the point where if you have alcohol in your system, your inhibitions go out the window. The details don't matter — what kind of drink it was. It just put me in a bad situation."
ROLEN HURT: Reds third baseman Scott Rolen was scratched from Saturday's starting lineup against the San Francisco Giants because he is experiencing concussion-like symptoms. He will be examined in Cincinnati today.
HAMPTON LEAVES GAME: Houston Astros' left-hander Mike Hampton left Saturday's start against Milwaukee after two innings with a right knee sprain. Hampton gave up three runs on five hits in 48 pitches.