Chris Tillman was scratched from his scheduled start Sunday due to abdominal soreness.
"He felt it a little bit about a week ago and (athletic trainer Richie Bancells) and them treated it and everything, and it went away," manager Buck Showalter said. "And then today he told Richie he felt it a little bit in the morning. And in talking to Richie we decided to be careful with it." The 24-year-old will take a few more days of rest before attempting to pitch again. There is no timetable for his return to the mound.