After a week of exciting matchups and upsets, there was a new look to the Associated Press Top 25 on Sunday.
LSU ascended to the nation's No. 1 ranking after beating Auburn, pushing Alabama down to the No. 2 slot, and Oklahoma's loss to Kansas State led to Penn State's ascension to No. 5. No. 3 Ohio State and No. 4 Clemson rounded out the Top Five.
Here's a look at the rankings:
3. Ohio State
5. Penn State
16. Notre Dame
20. Appalachian State
21. Boise State
22. Kansas State
23. Wake Forest
25. San Diego State
The Sooners' national championship hopes are on life support after their defense fell apart in a 48-41 loss at the Wildcats. Skylar Thompson rushed for four touchdowns and Kansas State scampered for 213 yards to overcome another sensational performance by Jalen Hurts. The Oklahoma quarterback threw for 395 yards and added 96 on the ground, accounting for four touchdowns.
"I don't have any idea on the lines and spreads, thank God," Kansas State coach Chris Klieman told reporters. "I mean, yeah, it was a statement win for our guys. I told the seniors, 'How many more opportunities are you going to have to play in front of your home crowd?'"
Oklahoma dropped five spots after losing to the 21.5-point underdog.
Notre Dame and Auburn also dropped in the rankings after losses in Top 25 competition. The Fighting Irish were outclassed from the opening snap in a 45-14 loss to Michigan, ending all hopes they had of getting in the College Football Playoff as a one-loss team. The win was critical for the Wolverines and especially coach Jim Harbaugh, who was facing criticism after a loss at Penn State.
"Some of the tests that the team has gone through, you can make a lot of growth from it," Harbaugh told reporters.
Auburn gave LSU its toughest test of the season, losing 23-20 in Baton Rouge. The homestanding Tigers got great efforts from their defense and Joe Burrow in his quest to win the Heisman Trophy. Burrow threw for 321 yards and a touchdown against an interception and added another score on the ground.
The biggest loser of the week was Texas, which dropped from No. 15 all the way out of the Top 25 after a 37-27 loss at TCU. Sam Ehlinger threw four interceptions, and the Longhorns lost for the second time in three games.
No. 22 Kansas State, No. 24 Memphis and No. 25 San Diego State moved into the Top 25.