Los Angeles Dodgers pitcher Tyler Glasnow exited Wednesday’s game against the Houston Astros early due to injury.

While warming up prior to the bottom of the second inning, Glasnow called the trainers out to the mound before exiting the game. Per the team, it’s lower back pain that caused him to leave.

The 32-year-old veteran threw just one inning, allowing one hit and one earned run on a solo homer while striking out two batters.

Glasnow had pitched six starts with 38.2 innings of work in those appearances. He’d been one of the MLB’s top arms so far, amassing a 2.56 ERA and 0.83 WHIP while punching out 47 hitters with a 32.6% K%. If he misses any kind of extended time, his absence will be a major blow to this Los Angeles rotation.

The Dodgers are atop the NL West at 22-14 prior to the conclusion of today’s game vs. the Astros.

Stay tuned to DK Network for the latest injury updates as they become available.