BOSTON (AP) -- The Boston Red Sox have declined their contract option on left-hander Matt Thornton.
The Red Sox obtained Thornton on July 12 from the Chicago White Sox but he was not on a postseason roster.
In 20 outings for Boston, all in relief, Thornton was 0-1 with a 3.52 ERA. In 60 relief appearances with the White Sox and Red Sox, he was 0-4 with a 3.74 ERA.
In 10 seasons, he appeared in 606 games, starting one, and is 32-42 with a 3.53 ERA.