This is a huge series for both teams with the Colorado Rockies owning a one-half game lead over the Los Angeles Dodgers at the top of the National League West and the Arizona Diamondbacks just 2 1/2 games back.

The D'Backs are in a slump though having lost seven of their last nine games, and I think this is an excellent price on the home team.

The Rockies hand the ball to right-hander German Marquez (11-9, 4.05 ERA) who gave up two runs but also fanned 11 through 6 2/3 innings against the Giants his last time out. Marquez is just 1-4 with a 4.72 ERA in 11 career games (10 starts) versus Arizona but this looks like a good time to better those stats.

The Diamondbacks turn to right-hander Zack Godley (14-8, 4.51 ERA) who was tagged with four runs over five innings against San Diego his last start. Godley could very well be out of rhythm and focus here after spending the week on the paternity list.

Diamondbacks are 2-7 in Godley's last nine starts vs. a team with a winning record. Rockies are 8-2 in Marquez's last 10 starts vs. a team with a winning record.

8* play on Colorado Rockies.