I am going to take the home team here which is challenging when you go up against the Cardinals who just keep winning and tonight they have a pitcher on the mound that has a 2.99 ERA, but Lackey has struggled down the stretch before. He's already at 165 innings this year and he's been worse on the road posting a 4.40 ERA and he goes up against Patrick Corbin, an All Star in 2013 who has pretty damn good numbers especially at home with 23K's in 23 IP and a 1.13 WHIP. Corbin is also a lefty which tends to give the Carindals issues the last few years. They are 24th in OPS vs. LHP and they are scoring a run less in home away splits vs. LHP than the Diamondbacks are vs. RHP. The Diamondbacks have a capable offense and I see them getting to Lackey early while Corbin won't go deep the Diamondbacks have an above average bullpen that has an ERA of 2.64 over their last 10 games.
