Yes, it feels like Notre Dame rivalry week.

“Growing up, being a USC fan and dreaming about coming to USC, you always dreamed about playing in USC-Notre Dame game,” said Williams, a former star at Gardena Serra, “and especially playing at South Bend is a dream.”

Notre Dame Stadium has been closer to a nightmare for USC recently. The Trojans (6-0) haven’t knocked off their rivals on the road since 2011, but ended a four-game losing streak in the series last year.

“One of the greatest rivalries in college football,” quarterback Caleb Williams said.

Already loaded with prestige, Saturday’s rivalry game also begins a critical stretch for the No. 10 Trojans. After slipping in the polls for three consecutive weeks, USC will face five ranked opponents in its last six regular-season games.

Here are four things to watch in USC’s game against the No. 21 Fighting Irish (5-2) at Notre Dame Stadium on Saturday at 4:30 p.m. PDT (Ch. 4):