The Diamondbacks recalled Uceta from Triple-A Reno prior to Sunday's game against the Rockies.
Arizona optioned right-handed reliever Sean Poppen to Triple-A to clear room on the 26-man active roster and in the bullpen for Uceta. The 24-year-old right-hander has previously made four relief appearances for Arizona this season, giving up five earned runs on seven hits and four walks over nine innings.