CHICAGO (AP) _ While Sammy Sosa didn't connect for the Chicago Cubs, Moises Alou, Craig Biggio and Carl Everett homered for the Houston Astros as they completed a three-game sweep with a 12-3 victory Monday.

Alou's homer was his 38th of the season and ninth in 18 games. Biggio has 17 homers, including four during the series. Everett was 2-for-5 with five RBIs, matching his career high.

Sosa, who homered twice Sunday, was 2-for-4 with a pair of singles and remained at 51 homers, two behind Mark McGwire in the chase to catch Roger Maris' record of 61. With the loss, the Cubs remained one game behind the Mets in the NL wild-card race.

The only homer the Cubs managed was from Mickey Morandini, who hit a two-run drive in the eighth inning.

Houston (82-50) outscored the Cubs 33-9 in the series and is 32 games over .500 for the first-time ever. The Astros are just two wins short of their 1997 total.

Alou went 3-for-3 with two walks and finished the series 8-for-13. Biggio was 3-for-4 and was hit by a pitch, going 8-for-15 in the series.

Shane Reynolds (16-8) retired 12 straight after a nearly 2-hour rain delay in the bottom of the second. He gave up one run _ unearned _ and four hits in six innings, striking out seven and walking none.

Houston scored in the first off Mark Clark (7-12) on consecutive doubles by Biggio and Sean Berry and an RBI single by Alou.

The Cubs managed an unearned run before the storm hit as Brant Brown doubled and scored when shortstop Ricky Gutierrez fielded Scott Servais' infield hit and threw high over first for an error.

Alou's homer off Matt Karchner came in the sixth after Cubs third baseman Jose Hernandez made an error on Jeff Bagwell's grounder.

Leading 4-1, the Astros scored three more off Karchner in the seventh when Biggio was hit, took third on Berry's single and scored on Servais' passed ball. After walks to Derek Bell and Alou, Everett hit a two-run single.

Biggio homered off Dave Stevens in the eighth to make it 9-1. Morandini hit a two-run homer in the bottom of the inning. Everett hit a three-run homer off Felix Heredia in the ninth.

Notes: A second set of X-rays on Henry Rodriguez's twisted right ankle was negative Monday. Rodriguez expects to miss at least three more days from the injury, sustained Sunday when he slid into second. ... Umpire Jim Quick held up the game several minutes in the fifth following a walk to Reynolds. Quick called the press box to talk with the official scorer and see if Reynolds drew four balls or just three. Stats Inc. had the count 2-2 when Reynolds took a ball and was sent to first. TV replays backed it up. ... The Astros have swept a series of three games or more eight times this season. It was their first sweep at Wrigley Field since May 12-14, 1989. ... The rain delay lasted 1:50, featuring completely blackened skies and high winds. Clark struck out after the rain delay but then did not come back out to pitch in the third.