The Diamondbacks are severely undermanned on the mound, with Corbin Burnes, A.J. Puk, Justin Martinez and multiple other arms all on the 60-day IL, leaving Arizona's pitching depth in critical condition. Coors Field brutally punishes depleted bullpens, and Colorado has no reported injuries heading into this game. The Rockies +1.5 at -120 gives strong run-line insurance in a high-elevation environment tailor-made to expose Arizona's thin staff.