LOS ANGELES — In Sam Darnold’s mind, his first season-opening start as Southern California’s quarterback had been pretty much a disaster.

From his two interceptions to the absence of a touchdown pass, Darnold left the Coliseum last weekend with a sinking feeling, even after his sixth-ranked Trojans surged to a comfortable 49-31 victory over Western Michigan.

HIGHLIGHTS: USC pulls away late to defeat Western Michigan