(SportsData) – St. Louis Cardinals starting pitcher Chris Carpenter will undergo season-ending surgery for his thoracic outlet syndrome. The 37-year old will finish the year without having thrown a regular-season pitch.
Carpenter was attempting a return to the Cardinals, but was instead shut down for a second time when his nerve-related shoulder problems flared up after his most recent side session. The surgery is now considered a necessity, reports the St. Louis Post-Dispatch, whether or not he pitched this season. Standard rehab for such surgery is six months, meaning Carpenter had to decide on having the procedure this month if he wanted to recover before next spring training. The procedure is considered risky, as sometimes symptoms can return afterwards.
When Carpenter went down in spring training it opened the door for Lance Lynn, who made the National League All-Star team with a 10-4 record and a 3.62 ERA.
A three-time All-Star, Carpenter signed a two-year, $21 million extension last September.
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