Evans gives the D-backs some protection at first base as they don't have a true backup to Paul Goldschmidt with Eric Chavez on the disabled list.
Spruill was brought up from Reno on Wednesday after the D-backs played 14 innings Tuesday and depleted their pitching. Spruill threw four innings of relief Wednesday against the Indians.
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.