HOUSTON— Justin Upton homered for the second straight game and had three RBIs and Alex Wood pitched seven scoreless innings to help the Atlanta Braves to a 4-0 win over the Houston Astros on Wednesday night. Shae Simmons and Juan Jaime finished the three-hitter as the Astros were shut out for the 10th time this season. The Braves had just two hits when Upton launched his 16th homer, a two-run shot into the bullpen in right-center, to make it 3-0 in the seventh inning.