Gilbert (elbow) could be a frontrunner for the Diamondbacks' fifth-starter role, Steve Gilbert of MLB.com reports.

EDGE Analysis

With the top four rotation spots in place, Gilbert and Dan Straily are considered the frontrunners for the final spot. Gilbert made a splash last season as a 27-year-old making his MLB debut, when he tossed a no-hitter against the Padres. He went on to post a 3.15 ERA over nine starts before elbow inflammation ended his season in September.