Patrick Corbin was knocked around for four runs on three hits and a walk over one inning in Wednesday's loss to the Royals. The left-hander issued a free pass to start off the inning, and then two singles preceded an Alex Gordon grand slam. Corbin was looking like the favorite for the Diamondbacks' fifth starter spot after being lights-out in his first two spring appearances, but this showing might knock him back to among the pack.