The Rockies selected Hudson's contract from Triple-A Albuquerque ahead of his start Saturday versus Atlanta.
Hudson will come up from the minors to fill the hole in the Rockies' rotation left by Ryan Feltner (shoulder), who landed on the injured list Thursday. The 29-year-old Hudson owns a 5.84 ERA through 86.1 innings in the majors this season, and he'll have the disadvantage of pitching in Coors Field during his first start back in the big leagues. Chasen Shreve was DFA'd in a corresponding move.