USC's offense kept the Trojans in the mix, mostly thanks to big performances from wide receivers Marqise Lee and Nelson Algohor.
But the Trojans were unable to put any pressure on the Ducks, who tore up the Trojans particularly in the running game. Oregon running back Kenjon Barner accumulated a whopping 321 yards and five touchdowns on 38 carries, and quarterback Marcus Mariota added 96 rushing yards of his own. He also completed 20/23 passes for 304 yards and four additional touchdowns.
After the game, head coach Lane Kiffin expressed his displeasure with his team's recent defensive performance.
If you have back-to-back games like that with over 600 yards we have to look at what we're doing, obviously," Kiffin said. "We have to figure that out. I don't have that answer for you or else I would have tried to fix it during the game."
The Trojans now find themselves ranked No. 21 in the latest AP Top 25 Poll after falling to 6-3. They no longer lead the Pac-12 South, which is controlled by the No. 17 UCLA Bruins (7-2). USC will next take on the Arizona State Sun Devils on Nov. 10.