The Rockies placed Hudson on the 15-day injured list Sunday due to right elbow inflammation.
Hudson was called up for his 18th start of the season Saturday versus Atlanta and surrendered five runs on three hits and four walks over 2.2 innings in a no-decision. The 29-year-old may not reclaim a spot in the Colorado rotation once healthy, given his 6.17 ERA and 49:50 K:BB over 89 innings this season.