MLB.com's T.R. Sullivan reports that Matt Harrison (back) "is expected to miss at least one start if not be out for an extended period of time." Harrison left Tuesday's outing with back stiffness and admitted that the injury was in the same area that he had operated on twice last year. The left-hander will fly back to Dallas to be examined by Dr. Drew Dossett, and a trip to the disabled list is surely forthcoming. It's really a tough break for Harrison, who was limited to just two starts last year and is now looking at possibly another extended absence.