Daniel Hudson (elbow) is expected to begin a rehab assignment with Double-A Mobile on Tuesday. Hudson allowed four runs in six innings Wednesday at extended spring training, hitting 95 mph on the radar gun. When asked if the righty might only need a few starts in the minors, Diamondbacks general manager Kevin Towers said, "We'll see how it goes." The problem for Hudson is that the D'Backs don't currently have room for him in their rotation. Of course, things can change over the next few weeks.