Stanford Knocks Off No. 2 USC: The 21st-ranked Stanford Cardinal handed the second-ranked USC Trojans a 21-14 road defeat Saturday, its fourth consecutive victory over the PAC-12 rivals. USC quarterback Matt Barkley, a Heisman trophy hopeful, has never beaten Stanford. He threw two interceptions and no touchdowns and was 4-of-9 passing for 43 yards in the fourth quarter. "This isn't the end of the world," said USC coach Lane Kiffin.