Even with Goldschmidt expected back in the lineup Wednesday night, Arizona might not need much offense if Josh Collmenter can recapture the magic from his last start as he faces the Colorado Rockies at Coors Field.Considering Arizona (24-36) had scored seven runs during a three-game skid, manager Kirk Gibson's decision Tuesday to sit the club's home run and RBI leader for the first time this season might have seemed ill-advised. But Owings was a single shy of the cycle and combined with Nick Evans for back-to-back homers in the fourth inning of a 4-2 victory at Colorado.Eight of Owings' 18 extra-base hits and seven of his 11 RBIs, including two Tuesday, have come in his last 14 games.Goldschmidt was hitting just .217 over his last 22 games with 27 strikeouts, though he had 15 RBIs in that span. The first baseman will try to continue his success against the Rockies after posting an OPS of 1.322 over his last 15 matchups with 17 RBIs. He's 9 for 22 in six games against them this season.Evans played first base in place of Goldschmidt, getting his first start since 2011 with the New York Mets."Yeah, I wouldn't count on that," Evans said when asked about another possible day off for Goldschmidt considering Arizona's victory. "If I was a betting man, I'd count on him being in there."Collmenter (4-2, 3.34 ERA) won his third straight start with his first career shutout in Thursday's 4-0 victory over Cincinnati. He limited the Reds to three hits and no walks while facing the minimum.He's 2-1 with a 4.41 ERA in six starts versus Colorado (28-29). He gave up four runs in seven innings of a 5-4, 10-inning victory over the Rockies on April 30.Not even a return to Coors Field, where the Rockies are 16-8, could stop their season-worst skid from growing to five games. They're hitting .215 over their last 11 contests while averaging 2.6 runs, with Tuesday's lone production coming from solo shots by Troy Tulowitzki and DJ LeMahieu.Compounding their troubles, two-time All-Star Carlos Gonzalez left in the sixth inning after irritating his left index finger, which has nagged him for most of the season."We're at a point where we've got to make a decision on this and see what's best for him and what's best for our club," manager Walt Weiss said of Gonzalez, who is 2 for 24 over his last nine games.If a disabled list stint is necessary, it comes at a particularly poor time, as Gonzalez is 5 for 12 off Collmenter with two homers.Jordan Lyles (5-1, 3.46) gets the nod for the Rockies looking for his first win in four starts. He didn't record a decision his last time out, allowing two runs over five innings in Wednesday's 6-3 loss at Philadelphia.Lyles has struggled with walks lately, issuing 15 over his last four outings spanning 20 1/3 innings. He had walked 10 in his previous 44 2/3 innings.The right-hander was 0-2 with a 10.43 ERA in three career starts against the Diamondbacks before outpitching Collmenter and even homering off him April 30, allowing a run and three hits over six innings.Goldschmidt doubled off Lyles that day and is 3 for 8 against him.