Almost every ball David Eckstein hit was trouble for the Tigers. Helped by a soggy field, St. Louis' scrappy shortstop delivered two key doubles that gave the Cardinals a firm grip on a World Series. Eckstein's tiebreaking double to left field glanced off the glove of a diving Craig Monroe in the eighth inning, and the Cardinals capitalized on Detroit's sloppy defense for a 5-4 victory Thursday night in Game 4.