Patrick Corbin will then start the first game of Tuesday's day-night doubleheader, with Rubby De La Rosa starting the second game. Chase Anderson takes the mound for the series finale Wednesday.
Ray labored through the first inning of his last start, throwing a whopping 44 pitches in the frame.
"I think after Robbie's last outing, everybody talking from the top down, we felt like it would be good to give him an extra day," D-backs manager Chip Hale said.
Ray and the rest of the rotation also received an extra day the last time through the rotation.
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.