Josh Collmenter is considered to be among the locks to begin the year in the Diamondbacks' rotation, the Arizona Republic reports.

Collmenter is considered to be among the locks to begin the year in the Diamondbacks' rotation, the Arizona Republic reports.

Analysis:

While he continues to exceed expectations as a starter, the Diamondbacks have a large cast of prospects and young arms acquired via trade over the past nine months capable of pushing Collmenter for his rotation spot over the course of the season. Given his senior status compared to the alternatives, it would not be surprising to see Collmenter receive the Opening Day start for Arizona. Oddly enough, he's hardly guaranteed to remain in the rotation for all of 2015 if he struggles, given the aforementioned supply of younger alternatives.