Colorado Rockies Pitcher Chase Dollander Faces Potential UCL Surgery

Colorado Rockies right-hander Chase Dollander has been moved to the 60-day injured list due to what the team believes could be a UCL injury.

The pitcher exited his May 14 matchup with the Pittsburgh Pirates early because of tightness in his right arm. While initial MRI results showed an elbow sprain, manager Warren Schaeffer announced Friday that UCL surgery may be necessary.

“(Dollander) is going for a pre-op appointment soon, within a week,” Schaeffer said. “Then, possibly, it is looking like surgery on the UCL. It’s still not set in stone, but that’s the way it’s trending.”

The 24-year-old has posted a 3-3 record with a 3.89 ERA across 10 outings this season, showing marked improvement in his second year.

During the previous fall, Colorado moved the then-rookie to the 15-day injured list to end the season following a knee injury. That concluded a difficult debut campaign where Dollander recorded a 6.52 ERA and went 2-12 while making 21 starts.

Sadly, his improved performance in 2026 may be cut short by this latest setback.

“If anything happens to that area, your mind automatically goes to the worst-case scenario,” Dollander said at the time of the injury.