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Phoenix, AZ (Sports Network) - Wilin Rosario had two hits and drove in four runs as the Colorado Rockies took a 7-5 win over the Arizona Diamondbacks in the opener of a three-game series.

Charlie Blackmon hit a two-run triple while DJ LeMahieu also drove in a run for the Rockies, who had dropped five of six coming in.

Tyler Chatwood was touched for two runs on seven hits and six walks in just 4 2/3 innings. Josh Outman (3-0) pitched 1 1/3 innings to get the win.

Miguel Montero hit a three-run home run and Eric Chavez drove in a run for the Diamondbacks, who have lost four of their last five games.

Brandon McCarthy lasted six innings and gave up two runs on 11 hits. Will Harris (3-1) was beat up for four runs on four hits in the seventh for the loss.