Former Vol Seth Halvorsen earned his fourth save in 2025 for Colorado. He pitched one inning and allowed one walk. Halvorsen totaled 15 pitches, including eight strikes, against three batters. Former Vol Jordan Beck also appeared in the series opener on Monday for the Rockies. He started in right field and went 0-for-3, totaling one walk.

In other moves before opening a series against the worst-in-the-majors Colorado Rockies, the Nationals recalled outfielder Daylen Lile from Rochester, optioned outfielder Robert Hassell III and infielder José Tena to the Triple-A club and designated infielder Juan Yepez for assignment.