ST. LOUIS (AP) – Jason Hammel worked six sharp innings and had both RBIs for the Chicago Cubs in a 2-1 victory over the St. Louis Cardinals on Tuesday night.

The Cardinals stranded two runners against the Cubs bullpen in the seventh and eighth. Yadier Molina was at second base when Hector Rondon struck out pinch hitter Jedd Gyorko to earn his third save in three chances.

Chicago leads the majors at 11-3 and goes for a three-game sweep Wednesday over the defending NL Central champions. They last swept St. Louis in three games on the road Sept. 13-15, 2010.