DENVER -- When Rockies manager Clint Hurdle originally posted Saturday's lineup against the D-backs, Matt Holliday was scheduled to bat third and play left field.

But by the time Hurdle spoke with the media, it was Ryan Spilborghs -- not Holliday -- who was batting third and playing left field.

The reason for the change? Hurdle revealed that Holliday tweaked his back while making a play in the outfield Friday, and when the slugger showed up to the ballpark Saturday, he was still in enough discomfort to be taken out of the lineup.

"He got here today, and he wasn't comfortable," Hurdle said. "We'll probably have to give him today, tomorrow and then the off-day Monday before re-evaluating him."

Holliday had started 88 consecutive games dating back to June 10 before getting a breather Monday. Hurdle said he was not aware of any pain in Holliday's back prior to Saturday.

"The first I heard of it was in the middle of the game last night," Hurdle said.

Holliday has had another incredible year at the plate, but his production has dipped in September. In 15 games, the three-time All-Star is hitting .233 with one home run, six RBIs and 13 strikeouts in 60 at-bats.

Holliday is still third in the National League with a .323 average and has 25 home runs to go with a career-high 27 stolen bases. He became the first Rockies player to have a 25-25 season since Larry Walker in 1997.

Hurdle also said that Todd Helton, who was activated from the 60-day disabled list on Sept. 12, is not available for the rest of the season. Helton will fly to Los Angeles on Wednesday to be examined by Dr. Robert Watkins, a renowned back specialist. Helton struck out in two pinch-hit at-bats.

"We had him back to a pretty good place," Hurdle said. "I don't think it had anything to do with swinging the bat. I just think they're monitoring things."