SCOTTSDALE — Arizona Diamondbacks right-handed pitcher Zac Gallen hasn’t let his focus shift as the club’s Opening Day plans have suddenly changed.Thank you for reading this post, don’t forget to subscribe! News broke Wednesday that Arizona’s projected Opening Day starter, Merrill Kelly, would not be able to take the mound against the Los Angeles Dodgers … Continue reading Diamondbacks’ Zac Gallen prioritizes readiness amid Merrill Kelly injury news