The Diamondbacks made the first trim in their competition for the final spot in the starting rotation Monday by optioning Tyler Skaggs to Triple-A Reno. That leaves only two players remaining in the battle -- Patrick Corbin and Randall Delgado -- with less than two weeks remaining before opening day.
Corbin appears to have a slight advantage, posting a 2-0 record and 3.68 ERA over five Cactus League games (three starts). He has also amassed 15 strikeouts to just four walks over 14 2/3 innings. Meanwhile, Delgado, one of the key pieces in the deal that sent Justin Upton to Atlanta in the offseason, has only appeared in three games and compiled a 6.43 ERA over seven innings of work.