Coming into spring training, it looked as if the front of the rotation was largely set. Zack Greinke would be the Opening Day starter, ahead of new man Taijuan Walker, then Robbie Ray. Shelby Miller was the most likely #4, but the fifth spot was entirely up in the air. The two main candidates were Patrick Corbin, once scheduled to be our Opening Day starter, but who ended 2016 in the bullpen, and Archie Bradley, who became a permanent member of the rotation at the end of May, though has still to deliver on the potential which once had him named as the top pitching prospect in baseball.
Arizona Diamondbacks Spring Training Position Battles: Fifth starter
