I guess it’s from throwing, and I get work in that area a lot," Nola said of the injury. "I’m not really sure,” he said. “I’ve never had a stress fracture in my rib before."

Aaron Nola has suffered another setback in his return to the Phillies' rotation after an MRI showed a right ribcage injury.

Phillies right-hander Aaron Nola suffered another setback in his return to pitch when an MRI showed he has an injury in his right ribcage and will be shut down for two weeks