Thanks to USC's fall, the pivotal game between West Virginia and Louisville will be the first top-five matchup for the rebuilt Big East.
The third-ranked Mountaineers and fifth-ranked Cardinals each moved up a spot in the Associated Press Top 25 on Sunday. The two unbeatens were off last week and play Thursday night in Louisville.
Southern California's 33-31 upset loss to Oregon State on Saturday opened up a spot in the top five. USC dropped from No. 3 to No. 9 after its first regular-season loss since falling 34-31 in triple overtime to California on Sept. 27, 2003. The last time the Trojans were ranked lower in the media poll was after that loss to Cal, when they were 10th.
No. 1 Ohio State and No. 2 Michigan remained on top of the AP poll.
The Buckeyes have been No. 1 all season. They received 63 of 65 first-place votes. The Wolverines were second for a third consecutive week. The Big Ten rivals meet Nov. 18 in Columbus.
In between West Virginia, which received two first-place votes, and Louisville is No. 4 Texas, which rallied from three touchdowns down to beat Texas Tech 35-31 on Saturday night.