This intense series between two of the top teams in the National League West continues Wednesday night. Arizona might be behind 1st place Colorado in the standings, but I think the visitors have an edge in this particular matchup with left-hander Patrick Corbin on the mound.

Corbin (11-5, 3.01 ERA) is 4-2 with a 2.86 ERA in 14 starts away from home and he has limited the Rockies to four runs on 12 hits with 14 Ks in 10 innings this year.

The Rockies counter with Jon Gray (11-7, 4.69 ERA) who has made one start against the D'Backs this year, in which he gave up three runs on six hits and three walks in four innings of work. Gray has struggled with the long-ball and served up at least one homer in each of his last eight starts; he has given up a total of five in the last three starts alone. That could spell big trouble here at Coors Field ...

10* play on Arizona Diamondbacks.