AUBURN, Alabama -- Auburn quarterback Clint Moseley has a chance to make his first collegiate start at No. 1 LSU this Saturday, and the redshirt sophomore said he's ready even if the challenge is huge.

"They're an amazing defense," Moseley said. "It's something that you really do dream about. I mean, how much more dramatic could it possibly be? No. 1 team in the country, road game, huge underdogs. It doesn't get any better. It's an opportunity I've dreamed of forever."

It would be pretty dramatic for Moseley, who had thrown two passes all season before being summoned off the bench to start the second half in last Saturday's 17-6 win over Florida. He threw only seven passes, and completed four, but was credited by coaches as providing a spark for the offense.

Either he or Barrett Trotter will start at LSU. Coach Gene Chizik wasn't saying Sunday who it would be, though said he and offensive coordinator Gus Malzahn would decide before Tuesday's practice.

"We're going to evaluate it some more. Gus and I will talk through it. Obviously, by the next time we practice, we'll know what we're going to do," Chizik said.

Auburn's offense, powerful with Cam Newton as the quarterback last year, has struggled this season, so much so that the Tigers' defense, so maligned early in the season, is now ranked better in NCAA standings than the Tigers' offense. The defense is ranked 77th. The offense is ranked 86th.

Even with Moseley's spark, Auburn had a season-low 278 yards against Florida.

"I only completed four passes. They were big plays in the game, but at the same time it was four passes," Moseley said.

Chizik said Trotter handled Moseley's on-field promotion well.

"He was great. He handled it as a class act. He handled it the way we thought he would. He was very happy he won," Chizik said.

Chizik said wildcat quarterback Kiehl Frazier is not "in the mix" for the starting job.

"He's a different entity," Chizik said.

But Moseley and Trotter are in the race for the starting job, just as they were in the preseason practice. Trotter was named the starter on Aug. 18. He's started all the way on the way to a 5-2 record. Now, Moseley may start.

"It's a different situation," Moseley said. "We've been through a hundred different situations. He's handled it well.

"He's still my friend. That hasn't changed."