The 11th-ranked Tigers (8-2, 6-1) moved up four spots in the rankings with a 31-to-30 win at No. 14 Georgia Saturday night.
John Vaughn's 20-yard field goal with six seconds left won it but a 62-yard pass from Brandon Cox to Devin Aromashodu on fourth-and-10 set up his heroics.
No. 8 Alabama (9-1, 6-1) dropped four spots with a 16-to-13 overtime loss to No. 4 LSU.
Looking to the Iron Bowl, Auburn has won the past three meetings against Alabama and was installed as a six-and-a-half-point favorite for this one.
Tide coach Mike Shula thinks rebounding mentally from the loss will be the team's biggest challenge this week. But, he says, "we do have a veteran team that will help us with that."