SAN FRANCISCO - Travis Ishikawa blasted a walk-off three-run home run in the ninth inning as the San Francisco Giants beat the St Louis Cardinals 6-3 on Thursday to clinch the National League Championship series and return to the World Series. The Giants had gone six consecutive playoff games without hitting a home run but belted three in Game Five to complete a 4-1 triumph in the best-of-seven series. San Francisco advance to a third World Series appearance in five seasons, where they will face the Kansas City Royals, who won the American League Championship Series on Wednesday. ...