Josh Collmenter allowed two runs on five hits over five innings in Sunday's game against the Padres. Collmenter will open the season as the Diamondbacks' fifth starter, but Trevor Bauer and Tyler Skaggs are candidates to replace him if he gets off to a slow start. The 26-year-old right-hander is winless in three starts this spring, and owns a 9.75 ERA over 12 innings.