Morton, coming off hip surgery, threw 15 pitches. He is scheduled to pitch again Monday, with a limit of 70 pitches, Pirates manager Clint Hurdle said. "That's our goal," Hurdle said.
"Progress is moving forward," Pirates pitching coach Ray Searage said. "He's feeling good, his arm action and fastballs are coming out of his hand very good, curve ball has even got better shape than it did early in spring training. So we're on the right course right now. All we got to do is build him up and get more reps in there so he doesn't have to think about it so much and let it happen more naturally."
If the outing on Monday goes well, Morton will join one of the Pirates' Minor League clubs for a rehab assignment.
Morton's rehab stint in the minor leagues is expected to last a full 30 days before he is activated. That would put his tentative return from the disabled list in June.