Cardinals' win 7-3

HOUSTON (AP) - Mark DeRosa homered twice at Minute Maid Park for the second time this season and the St. Louis Cardinals beat the Astros 7-3 on Monday night, a few hours after Houston fired manager Cecil Cooper.

Third-base coach Dave Clark was named Houston's interim manager for the last two weeks of the regular season, but the Astros lost their eighth straight game in Clark's major-league managing debut.

DeRosa also had a two-run double for the Cardinals, who reduced their magic number for winning the NL Central to three.

Kyle Lohse (6-8) allowed three runs and five hits in six innings to earn his first win since Aug. 10.

Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.