Updated

Evan Gattis kept up an amazing rookie season with his first grand slam, B.J. Upton and Ramiro Pena also homered, and the Atlanta Braves finished off a sweep of the woeful Minnesota Twins 8-3 Wednesday.

The Braves stretched their winning streak to six games and made things easy for Paul Maholm (6-4), who allowed an unearned run in 7 1-3 innings.

Gattis struck less than 24 hours after his two-out, pinch-homer in the ninth allowed the Braves to pull out a 5-4 win over the Twins in extra innings. Swinging on a 3-0 pitch with the bases loaded in the fourth, he launched an opposite-field drive just inside the right-field pole.

Vance Worley (1-5) gave up eight runs in 3 2-3 innings in the Twins' eighth straight loss.