St. Louis Cardinals Peter Bourjos smiles as he runs to first base after hitting the game winning RBI in the ninth inning to defeat the Pittsburgh Pirates 1-0 at Busch Stadium in St. Louis on September 3, 2014. UPI/Bill Greenblatt

St. Louis Cardinals Peter Bourjos runs to first base after hitting the game winning RBI in the ninth inning. UPI/Bill Greenblatt

Peter Bourjos singled home the winning run in the ninth inning, giving the Cardinals a series sweep and their fifth straight win with a 1-0 victory over the Pittsburgh Pirates on Wednesday.

Pittsburgh closer Mark Melancon, in his second inning of work, got the first two men before Yadier Molina drew a walk. John Jay singled to left. Bourjos followed with a single to center and Molina easily beat the throw home from Andrew McCutcheon.

Trevor Rosenthal (2-6) pitched the ninth for the win.

Mike Matheny rolled the dice by keeping the slower Molina on the base paths instead of bringing in a pinch runner, but the move paid off.  Matheny explains the benefits of keeping Molina in a close game in case they had to take the field.

Watch Molina chuggin’ on home. Video/MLB