After those three unearned runs in the first, Miller was able to settle in and he didn't allow another run over five total innings, striking out six batters.
• D-backs Spring Training information
"The last four innings I felt strong," Miller said. "Just made some adjustments, trying to stay on top of the ball. I felt like the first inning I was trying to be too fine with my pitches. It's just all about getting it down in the zone and just trying to execute the pitch. Like I said after that first inning, I felt like I did a good job of doing that."
D-backs outfielder A.J. Pollock (elbow) played center field in a Minor League game Sunday.
Pollock, who has not played in a Cactus League game since March 8, was allowed to throw, but not swing the bat. He did, however, manage a bunt hit.
Pollock is likely to follow that routine for a couple of days, according to manager Chip Hale, and he could get into a Cactus League game in four days or so.
The D-backs will make more roster moves Monday.
Steve Gilbert is a reporter for MLB.com. Follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.