May has been diagnosed with a torn UCL in his pitching arm, Mike Berardino of the St. Paul Pioneer Press reports.
May says he will seek a second opinion before deciding how to proceed, but signs point to Tommy John surgery in the near future. The 27-year-old felt a twinge while pitching in Wednesday's Grapefruit League game and a subsequent MRI revealed the worst-case scenario. It's the latest career setback for the right-hander, who battled through back issues throughout the 2016 season en route to a 5.27 ERA over 44 games. With May likely done for the season, the door is open for Jose Berrios to take over the fifth spot in the Twins' rotation, but he could face competition from Tyler Duffey.