Zack Greinke arrived back at the Dodgers' spring training facility Tuesday from a quick trip to Los Angeles to have his injured right elbow examined by team physician Dr. Neil ElAttrache. His day away from the team did little to add context to his situation. Dr. ElAttrache confirmed the initial diagnosis of inflammation in the back of Greinke's throwing elbow and prescribed three more days of inactivity for the 29-year-old right-hander, who won't pick up a baseball until Friday. Other than that, nothing has changed. "I didn't really know what the problem was, and I guess I still don't," Greinke said. "I'm not a doctor. I just kinda go off what they're saying to me." Greinke revealed little about how his elbow was feeling. "I don't know how it's supposed to feel," he said. "I haven't talked to the trainers yet. I don't really think I should be telling you too much information about what's going on." Greinke, who signed to a $147 million deal in December, recently received a PRP (platelet-rich plasma) injection in the elbow to promote healing.