Arizona has a huge advantage on the mound with SP Jordan Montgomery taking on SP Kyle Gibson. St. Louis has struggled mightily against lefty pitchers (83 wRC+), too. Gibson has struggled with his command and doesn't generate enough swings and misses. That's a problem against a D-Backs squad coming off a 15-hit, 14-run performance yesterday. At under -130 odds, there is value on the AZ ML, so I'm pouncing on it.