STANFORD, Calif. (AP) - David Shaw had to wait eight games last year before seeing his Stanford team truly tested, beating Southern California in a triple-overtime thriller.

No wait this year.

After a close 20-17 win over San Jose State in the season opener sent them tumbling four spots in the AP poll, the No. 25 Cardinal (1-0) will learn more about whether that was a fluke or a sign of things to come without Andrew Luck this season when they host a stronger Duke (1-0) team Saturday night.

Stanford won 41-14 at Duke last year behind Luck's second-half surge and the Blue Devils haven't beaten a ranked opponent on the road since winning at Stanford in 1971. As the first weekend showed, however, times might be changing this season.