I like the Under here for a lot of the same reasons I think there's good value on the Cardinals moneyline. Carlos Martinez has done well against this Arizona squad, and the DBacks are starting lefty Robbie Ray. The Cardinals offense isn't nearly as good against lefties as it is righties.

There's good value here on the Cardinals as underdogs. Carlos Martinez has been better at home than on the road this season, but he's done well at Chase Field in his career, allowing only 5 runs in 21.1 innings with 20 strikeouts. Current Arizona hitters have an OPS of .560 and a wOBA of .267 against him.

Carlos Martinez has been below average on the road, with a 4.61 ERA and 21 walks in 27.1 innings. Robbie Ray was very impressive in his return from an oblique injury last time out, tossing six shutout inningd. Arizona sends the Cards to their fifth straight loss.