LSU surged to No. 6 in The Associated Press college football poll after its second victory of September against a highly ranked team, and Wisconsin tumbled to No. 18 after becoming the first top-10 team to be upset by an unranked team.

Top-ranked Alabama strengthened its hold on No. 1 on Sunday , receiving a season-high 58 first-place votes from the media panel. Clemson slipped out of the No. 2 spot for the first time this season. Georgia moved up a spot to second behind the Crimson Tide, giving the Southeastern Conference the top two teams in the ranking. Clemson is third with three first-place votes, followed by No. 4 Ohio State and No. 5 Oklahoma.

LSU has now gone from No. 25 to start the season to No. 6 in three weeks.

The Tigers beat Miami, the preseason No. 8, in Week 1 in Arlington, Texas, and then knocked off Auburn on Saturday at Jordan-Hare Stadium. Auburn slipped from No. 7 to No. 9.

Wisconsin's loss to BYU was Saturday's most surprising result. The Badgers were three-touchdown favorites but missed a last-second field goal to tie and lost 24-21 in Madison. The Big Ten had five teams in the top 14 to begin the seasons and three (Michigan, Michigan State, Wisconsin) have already lost.

BYU's reward was being ranked No. 25.