AP College Football Poll 2017: Complete Week 6 Rankings Released

The top of the Associated Press remains unchanged, but Clemson continues to make the case it's every bit as formidable as Alabama.

The Tigers gained nine first-place votes from their eight last week after a 31-17 win over Virginia Tech, their third win over a ranked opponent this season. Alabama remains a strong No. 1 with 44 first-place votes after a 66-3 trouncing of Ole Miss.

Oklahoma, Penn State and Georgia round out the Top Five after a Washington State upset of USC sent the Trojans tumbling down the rankings.

Here's a look at how the entire Top 25 played out:

1. Alabama

2. Clemson

3. Oklahoma

4. Penn State

5. Georgia

6. Washington

7. Michigan

8. TCU

9. Wisconsin

10. Ohio State

11. Washington State

12. Auburn

13. Miami

14. USC

15. Oklahoma State

16. Virginia Tech

17. Louisville

18. South Florida

19. San Diego State

20. Utah

21. Notre Dame

22. Florida

23. West Virginia

24. North Carolina State

25. UCF

After weeks of teetering on the brink, USC finally suffered its first loss in a 30-27 thriller against Washington State on Friday. Erik Powell knocked through a 32-yard field goal with 1:40 remaining to give the Cougars their game-winning score, while a Sam Darnold-led comeback drive failed.

Darnold, a preseason Heisman favorite, now looks almost completely out of the race. He threw for just 164 yards and an interception without a touchdown, though he did rush for two scores.

"I think it's just a steppingstone. We expect to win games like this," Washington State quarterback Luke Falk, who threw for 340 yards and two touchdowns, told reporters. "Hopefully from here on out going forward guys will continue the tradition of competing in games like these. Right now it's a steppingstone."

Washington State moved up five spots to No. 11, while USC dropped nine to No. 14.

Virginia Tech dropped four spots after its loss to Clemson, but this was a mostly successful week for the Top 25. Mississippi State and LSU were the only other two Top 25 teams to lose. The Bulldogs lost a 49-10 drubbing to Auburn, while LSU lost a 24-21 home tilt to Troy that rocked Baton Rouge.

North Carolina State and UCF replaced Mississippi State and LSU in the rankings.