From the Pittsburgh Pirates:
After recent reexaminations determined there was less than the desired amount of clinical healing, the decision was made that surgery was the most prudent path to optimal health for the 2019 season.
Surgery to repair the abdominal wall and to help the stress reaction heal was performed today by Dr. Craig Smith in Los Angeles, CA.
A typical recovery time frame from this type of surgery that would allow an athlete to participate in full off-season training activities is approximately six weeks. We anticipate Joe will be on or close to a regular schedule for 2019 Major League Spring Training.