The Astros outrighted Mushinski to Triple-A Sugar Land on Monday, Matt Kawahara of the Houston Chronicle reports.
Mushinski lost his 40-man roster spot last week when the Astros needed to free up space for Kyle Tucker's return from the 60-day injured list. He will remain at Sugar Land, where he's spent the bulk of 2024 and posted a 4.25 ERA and 50:22 K:BB over 42.1 innings.