Rea (elbow) underwent Tommy John surgery Thursday, Dennis Lin of the San Diego Union-Tribune reports.
The hope was that Rea would be able to avoid Tommy John surgery with PRP treatments and rest and rehab, but after he felt discomfort while throwing earlier this week, the decision was made to send him for the procedure. Rea is hoping to be ready for the start of the 2018 season. He was infamously traded to Miami then traded right back to San Diego at the deadline after reporting elbow soreness in his debut with the Marlins.