Collmenter helps give Arizona 3-game sweep
The only run off Collmenter came on Anthony Rizzo's 23rd home run of the season and third of the series.
Arizona's go-ahead run scored from third base when the first baseman Rizzo caught a pop foul while tumbling into the camera well.
By rule, runners are awarded a base when a defensive player carries the ball out of play. David Peralta scored on the play to put the Diamondbacks up 2-1. Peralta also drove in two runs with a double and single.
Jake Arrieta allowed three runs and four hits in 6 2-3 innings for the Cubs. Collmenter gave up four hits, struck out four and walked one.
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