20 Southern California rallied from a late 13-point deficit for a 28-27 victory over Arizona State on Saturday in the Pac-12's long-delayed season opener. Bru McCoy caught a deflected 26-yard TD pass with 2:52 left for the Trojans (1-0), and Max Williams recovered the onside kick. USC's defense then stopped Arizona State (0-1) on downs near midfield with 50 seconds left to preserve an astonishing comeback for perpetually embattled coach Clay Helton's team. Slovis passed for 381 yards for USC, while Stephen Carr and Markese Stepp made scoring runs in the first half. New Arizona State co-defensive coordinator Marvin Lewis also was on the verge of a strong debut before the Trojans broke through.