Rockies catcher Miguel Olivo was carted off the field after he took a blow to the head on Albert Pujols' follow-through in the first inning on Friday.
Olivo had his neck stabilized and was placed on a stretcher, replaced by Chris Iannetta.
UPDATE: Olivo was taken to a St. Louis hospital and is undergoing CT scans on his head and neck, the Denver Post 's Jim Armstrong reports .
UPDATE: More from Armstrong , Olivo suffered a "mild" concussion in the incident and was able to return to the Rockies' clubhouse at Busch Stadium by the end of the game. He didn't speak with reporters.
"Believe me, I thank God for this, we avoided a catastrophic injury," manager Jim Tracy said.
-- C. Trent Rosecrans
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