According to The New York Post’s Jon Heyman on Thursday, Stanton’s injury woes go further than just his elbows. Giancarlo Stanton is said to be dealing with a chronic calf issue as well as the elbow injuries, but the arm pain is the bigger problem.

MLB insider Jon Heyman reported that the Yankees are “optimistic” Stanton—who is out indefinitely due to elbow issues in both arms—could be back by Memorial Day. While a late-May return isn’t ideal for a team already plagued by injuries, it marks the first time we’ve heard any legitimate timeline for Stanton’s potential return.