These two surprising teams are both surging, with the Diamondbacks winning seven straight and the Rockies in the midst of a five-game win streak when they meet Tuesday at Coors Field. The price is flat but I am going to go with Arizona behind Zack Greinke, who is 8-4 all-time against Colorado and 3-0 with a 4.03 ERA in Denver. Rockies starter German Marquez is 0-1 with a 3.75 ERA against the Diamondbacks this season. Colorado owns a 4-2 edge in the season series thus far, but look for Arizona to have the advantage Tuesday.

Arizona ace Zack Greinke and Rockies starter German Marquez already have met once this season at Coors Field. It happened six weeks ago, and Arizona won 6-3. Marquez also lost at Arizona a week earlier. Arizona has won seven straight while batting .306. It's going to be a warm night at Coors Field, meaning the ball will travel better. Arizona strikes first in this three-game series and gets the win Tuesday.

Under normal circumstances, the Diamondbacks with be a decent-size favorite with Zack Greinke on the mound. But the Rockies are riding a five-game winning streak behind a burst of what looks like an unstoppable offense. Back Colorado to keep it going Tuesday.