Jeff Karstens was scratched from throwing a scheduled batting practice session because of "a little soreness" in his right biceps.
"I just want to play it smart," said Karstens. "It doesn't make any sense to push it," he said. "I'll still play catch (on flat ground). We just want to be smart about this, wait a couple days." Karstens was limited to just 90 2/3 innings last season due to a shoulder issue and a hip flexor injury, so there's no reason to take any chances this early.