After Suppan worked seven innings of one-run ball against Los Angeles at home last week, he went one better Friday night, holding the Dodgers to no runs over seven innings as he gained his seventh victory after a slew of no-decisions.
Suppan got one inning of relief help each from Adam Wainwright and Jason Isringhausen, who pitched around a leadoff walk and an error by Scott Rolen to get the final two outs for his 27th save in 34 tries.
The Cardinals moved above .500 on the road at 23-22 and beat the Dodgers for the fifth straight time over the last two weekends.
The Cardinals missed on several scoring opportunities, but they beat All-Star Brad Penny for the second time in a week, with rookie Chris Duncan clubbing a long home run off a changeup in the fourth inning and walking and scoring the second run in the sixth.
"The more opportunities I get, the better I'm feeling," said Duncan, who has been up and down three times between St. Louis and Triple-A Memphis this year. He figures to stay this time.
REPLAY: Chris Duncan hit his fifth home run to lead off the fourth inning and Juan Encarnacion singled with the bases loaded to score Duncan with the second run in the sixth as the Cardinals beat Los Angeles 2-0 on Friday night.
Jeff Suppan mixed his pitches efficiently, holding the Dodgers to five hits over seven innings.
--General manager Walt Jocketty doesn't see anything imminent in the trading market. "I don't get the sense that anybody is close to doing anything right now, especially in the areas that we're looking at," he said. The Cardinals' top priority is still a corner outfielder, he suggested.
--1B Albert Pujols extended his hitting streak to a season-high 10 games with a sixth-inning single and eighth-inning double. He is 19 for 43 (.442) during the streak.
--A fourth-inning error on a double-play relay by 2B Aaron Miles was the Cardinals' first error in 11 games.
--The Cardinals are finding only one team really chasing them now. Cincinnati remained four games behind the Cardinals in the National League Central Division, but Milwaukee and Houston both are nine back.
--The three-pitcher shutout was the Cardinals' fourth whitewash this season. They have been shut out three times.