Houston at Arizona

Houston has won four of five after taking the first two of this series, 2-1 and 1-0. Cristian Javier is holding batters to a .237 average with Houston winning six of his last nine starts. The Astros have the fifth-best relief staff (3.57 ERA) in baseball. Houston is on a 50-30 run on the road, including 27-12 away from home in the second half of the season. They're also 34-15 on the road versus lefty starters. Arizona has lost three in a row with an offense that is 14th in on-base percentage and 17th in slugging, while the pitching is 20th in ERA (4.47) and 19th in WHIP. Reliever Kyle Nelson makes just his second start and has a 4.94 ERA at home this season where batters are hitting .293 off him. And the Diamondbacks are 2-16 after scoring 4 runs or fewer in four consecutive contests. Play Houston.