Jordan Montgomery left Tuesday's start against the Houston Astros after just one inning with elbow tightness.

The Yankees sent the left-hander back to New York for tests, which revealed a flexor strain that will sideline him for up to two months.

Montgomery escaped the incident without ligament damage and, it appears, a dreaded Tommy John surgery.

He has a 3.62 ERA and 123 ERA+ this season after a promising 2017 campaign.