The Red Sox have scratched Andrew Miller from Thursday's game against the Cardinals after he complained of stiffness in his left elbow.
"He came in with a little soreness in the back of his elbow," Bobby Valentine said. "The operative word here is a 'little' and 'stiffness.'"
In his first outing of the Grapefruit League season on Sunday, Miller fired two scoreless innings against the Twins, walking one and striking out three.
The 6-foot-7 left-hander then threw "an extended side" in the bullpen on Tuesday.
Boston Scratches Miller With Elbow Stiffness