Carpenter, who threw a side session without incident Saturday afternoon, awoke Sunday to find his elbow had swollen much as it did following his start April 1 against the New York Mets.
A trip to the disabled list would be Carpenter's third in the past four seasons. He went on the DL last May with right shoulder bursitis. In September 2004 he experienced a nerve disorder in his right biceps that caused him to miss the club's postseason push to the World Series.During December's winter meetings the Cardinals picked up their 2008 option on Carpenter while signing him to a three-year, $43.5 million extension with a $15 million option for 2012.
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