Patrick Corbin spun three scoreless frames in Friday's 6-2 win over the Cubs. Corbin allowed three hits while walking one and fanning four. The 24-year-old southpaw now has eight strikeouts and two walks over five scoreless innings of work this spring. Randall Delgado and Tyler Skaggs haven't been overly impressive so far, so Corbin could be emerging as the early favorite for the fifth spot in Arizona's starting rotation.