Pinch-hitter Jason Michaels hit a grand slam in the seventh inning and Wesley Wright tossed seven solid frames as the Houston Astros extended their winning streak to a season-high five games with a 5-2 victory over the Milwaukee Brewers Sunday.

Hunter Pence collected two hits and scored twice for Houston, which completed its first sweep of Milwaukee since taking a three-game series from May 2-4, 2008 at Minute Maid Park.

The Astros rallied from down 2-0 in the seventh as Pence led off with a single that was deflected by Brewers starter Randy Wolf, who immediately left the game with a wrist injury. Kameron Loe (1-2) came on and walked both batters he faced to load the bases.

Batting for Brett Wallace, Michaels launched a 2-0 pitch from Zach Braddock over the wall in left field for his seventh home run and a 4-2 lead. Michaels has two homers and nine RBIs as a pinch-hitter this season.

Pence added an insurance run in the eighth, hitting a one-out triple and scoring on a throwing error by Milwaukee second baseman Rickie Weeks.

Wright (1-1) allowed two runs and four hits while walking one and striking out six in his third career start. The 25-year old left-hander retired the first 12 batters he faced and extended the Astros' pitching staff's scoreless innings streak to 31 before yielding a pair of runs in the sixth.

Wilton Lopez struck out two in a perfect eighth and Brandon Lyon retired the side in order in the ninth for his second save in three chances this year.

Corey Hart belted a two-run homer for the Brewers, who have lost five in a row.