(The Sports Xchange) - The Chicago Cubs rocked Jeff Samardzija for four early runs on Saturday en route to a 5-2 victory over the San Francisco Giants and a 2-0 lead in their National League Division Series. Chicago needs one more win to claim their second successive trip to the NL Championship Series and a meeting with the Los Angeles Dodgers or Washington Nationals. Travis Wood, the second of six Cubs pitchers, earned the victory and belted a solo home run before an overflow crowd of 42,392 at Wrigley Field.