Arizona at Colorado

Arizona will attempt to snap a four-game skid and the Diamondbacks have the right guy on the mound to do it in Zac Gallen, who is 11-2 with a 2.42 ERA and has not allowed a run his last six starts. Gallen has thrown 41 1/3 scoreless innings and is closing in on Orel Hershiser's record of 59 consecutive scoreless innings although admittedly he faces his toughest test at Coors Field. However, the right-hander already has appeared in two games at Coors this season and allowed only three runs on six hits in 13 innings. Ryan Feltner is 2-7 and had a 6.00 ERA in August giving up 20 earned runs on 32 hits in 30 innings. The Rockies are 2-10 their past 12 games versus a pitcher with a WHIP of less than 1.15 and they are headed for a last-place finish in the NL West. Take the Diamondbacks.