CHICAGO — Tampa Bay Rays ace Tyler Glasnow has a partially torn elbow ligament, the team said Tuesday, putting in doubt his future for the rest of this season and beyond.

An MRI showed Glasnow had a tear in his ulnar collateral ligament and also a flexor strain. The test was done after the right-hander exited Monday night’s game in Chicago against the White Sox after four innings.

Glasnow said he won’t have surgery for now, and instead will try to strengthen the area. He plans to see another doctor on Friday.

If Glasnow chose to undergo Tommy John surgery, that would sideline this season and could prevent him from pitching next year, too.