Daniel Hudson has been diagnosed with right forearm tightness. Hudson appeared to mention his elbow when confronted by trainers on the mound, and forearm tightness is often a precursor to an elbow injury. Either way, it's bad news for a D'Backs team that can't afford any injuries as they try to chase down the Dodgers and Giants. If he has to miss significant time, we won't if the team will consider giving Tyler Skaggs a shot.