PHILADELPHIA, July 28 (UPI) -- Roy Halladay threw his eighth complete game of the season Wednesday, striking out nine and carrying the Philadelphia Phillies past Arizona 7-1.

Outfielder Domonic Brown, one of the most prized prospects in the minor leagues, was called up by Philadelphia Wednesday to make his major league debut and he drove the first pitch he saw deep to right for a double.

The Phillies won their seventh straight and remained 3 1/2 games behind first-place Atlanta in the National League East.

Halladay (12-8) gave up six hits and did not walk a batter. It was his 57th complete game in a career that spans 13 years and 335 starts.

Brown, who has been playing at Class AAA Lehigh Valley, narrowly missed a homer with his first swing of the bat and finished 2-for-3 with a sacrifice fly. He scored twice.

Philadelphia took a 5-0 lead with a three-run sixth, during which Carlos Ruiz had a two-run double and then scored on a single by Placido Polanco. The Phillies have won 10 straight games at home.

The loss went to Edwin Jackson (6-10), who allowed five runs on eight hits in five-plus innings. The Diamondbacks have dropped six in a row.