Arizona at Oakland

The Diamondbacks have Zack Greinke going, who is throwing great with a 67-7 strikeout to walk ratio in 60+ innings. Arizona is 12-4 when Greinke starts with five days of rest, plus 8-3 when he starts interleague games. Oakland goes with Frankie Montas, called up from Triple-A. Montas put up a 7.03 ERA with the A's last season as a reliever, walking 20 in 32 innings. He's been working as a starter at Triple-A Nashville in 2018, owning a 4.39 ERA in nine starts where he has allowed more hits than innings pitched. The Athletics are 11-23 in interleague games, including 6-18 at home. And the Diamondbacks are 7-4 in the last 11 meetings at Oakland. Play Arizona.