Sun 4/3/16 2:11 PM

The D-backs optioned O'Brien to Triple-A Reno as part of their final roster cuts.
EDGE Analysis
Socrates Brito made the Opening Day roster on the heels of A.J. Pollock's elbow injury Friday. O'Brien is still a work in progress defensively, but the return to Triple-A to begin the year will give him an everyday opportunity for reps in left field.