JUPITER, Fla. -- The waiting continues with regard to Cardinals co-ace Chris Carpenter.
For the third straight day Thursday, Carpenter was being examined by nerve specialists in St. Louis to determine the cause of what has been described as "weakness" in his neck, shoulder and upper arm and decide on the best course of action.
There wasn't much of an update on Carpenter's situation before Thursday's game against the Nationals.
"We really don't know anything," manager Mike Matheny said. "He has more tests today. The things he's been tested on already, there haven't been any real [red] flags. When we get the results all together, then we'll be able to give you guys more."
A more substantive update is expected Friday.
Carpenter has already been ruled highly doubtful to be ready to break camp for Opening Day. The question is how deep into the season the Cards can expect to be without Carpenter. He has been bothered by a bulging disc that affected a nerve in his neck, and though he threw a successful batting practice session Sunday, he felt discomfort the following day and returned to St. Louis.
His condition has been compared to the nerve-related issues that prematurely ended his seasons in 2004 and '08 and also bothered him in 2010.