(Reuters) - The San Francisco Giants fought off elimination from the National League Championship Series yet again on Sunday, beating the visiting St. Louis Cardinals 6-1 to force a deciding Game Seven.

Giants starter Ryan Vogelsong delivered seven stellar innings that included a career-high nine strikeouts to help tie the best-of-seven series at 3-3.

On Friday, Barry Zito helped keep the Giants' season alive, pitching into the eighth inning of a 5-0 shutout that extended the NLCS to a sixth game.

The teams will play Game Seven on Monday with the winner advancing to the World Series to face Detroit.

(Reporting by Jahmal Corner in Los Angeles; Editing by Peter Rutherford)