The good news: An MRI for Zack Greinke, who exited Wednesday’s game with abdominal tightness, came back clean.
The bad news: Taijuan Walker, who is recovering from Tommy John surgery, suffered a capsule sprain in his right shoulder and will not throw for six weeks.
Walker received a platelet-rich plasma injection (PRP) after consulting with four different physicians and will not be able to throw for six weeks. He previously was throwing bullpen sessions and simulated games.
Meanwhile, Greinke did light tossing on Friday and will throw a bullpen on Saturday to further determine next steps. Lovullo said the team would hesitate to skip a start or two for their ace if it meant better long-term health later in the season. They’re hoping to avoid an IL stint.
http://arizonasports.com/story/1942...r-has-setback-zack-greinkes-mri-results-good/