Astros' sweep Pittsburgh in 2

PITTSBURGH — Wandy Rodriguez took Ezequiel Astacio's spot on Houston's roster minutes after Astacio beat the Pittsburgh Pirates, then pitched even better than Astacio as the Astros completed a doubleheader sweep by winning 6-4 Tuesday night.

Lance Berkman, picking up much of Houston's missing offense with Jeff Bagwell on the disabled list, hit a two-run homer in the second game and had four hits in the Astros' first road doubleheader sweep since Aug. 4, 1995 — also in Pittsburgh.

Astacio limited Pittsburgh to two runs in six innings for his first major league victory, and Morgan Ensberg keyed the Houston Astros' offense in a 9-3 win over the Pirates in a doubleheader opener Tuesday night.

Ensberg's RBI single followed Lance Berkman's double in the first off Pirates rookie Ian Snell (0-1).

NATIONALS 4, ROCKIES 0: At Washington, John Patterson allowed three hits in eight innings, and fill-in shortstop Jamey Carroll delivered two hits and an RBI to lead Washington to only its fourth victory in 13 games.

Patterson (4-2), who beat Shawn Chacon (1-6), left to a standing ovation after giving up a leadoff single in the ninth. Chad Cordero finished for his major league-high 33rd save.

Nationals manager Frank Robinson shook up his lineup, sitting slumping shortstop Cristian Guzman and hobbled third baseman Vinny Castilla.

CUBS 7, REDS 3: At Cincinnati, Aramis Ramirez homered twice — his third straight game with a homer — and drove in five runs for streaking Chicago.

Mark Prior (7-3) gave up seven hits and three runs in 6 2/3 innings.

Derrek Lee had three hits, including a two-run double in the fifth off Luke Hudson (1-5).

PHILLIES 5, DODGERS 4 (10): At Philadelphia, Ryan Howard hit a two-run homer in the 10th inning to lift the Phillies over slumping Los Angeles.

The Dodgers went ahead 4-3 in the top of the 10th on Billy Wagner's bases-loaded walk to Jayson Werth.

Pat Burrell hit a leadoff triple in the bottom of the inning off Yhency Brazoban (2-5), his first of the year.

METS 3, PADRES 1 (11): At New York, pinch-hitter Chris Woodward hit a two-run homer with one out in the 11th inning for the Mets.

Woodward homered off Chris Hammond (5-1) after Mike Piazza. It was Woodward's first home run as a pinch-hitter and the second game-ending homer this season for New York.