Guerra, 35, signed a one-year contract with Arizona last offseason worth a guaranteed $2.65MM. That deal comes with a $3.5MM club option for 2021. It’ll be an interesting decision for GM Mike Hazen and the rest of the D-Backs front office. The veteran righty worked to a strong 3.04 ERA in 23.2 innings this season, but that was driven by an unsustainably low opponents’ BABIP (.250) and HR/FB rate (7.1%). Guerra’s 21:15 strikeout-to-walk ratio hints at potential regression. If Arizona decides to exercise the option, they’ll control him through 2022 via arbitration.