Hellickson had to shut down a throwing session Saturday with cramping in his right side under his rib cage, the Arizona Republic reports. Hellickson downplayed the injury: "It's more of a cramp than anything I guess," Hellickson said. "Just kind of a precautionary thing to shut it down." However, player estimates on injuries are notoriously overly optimistic. Watch closely to see if there's any sort of oblique injury, as those tend to linger well beyond first estimates.