Tuscaloosa, Ala. • Cam Newton ran around Bryant-Denny Stadium with a hand over his mouth, having hushed those who might have thought his shot at the national title was gone — along with the Heisman Trophy.

He's very much on track for both, thanks to his most audacious performance yet in this season of triumph and controversy.

No one had ever rallied a team against Alabama after trailing by 24 points. But that's just what Newton did Friday, leading No. 2 Auburn to a stunning 28-27 triumph that kept the Tigers in the thick of the BCS championship race and might have swayed any Heisman voters who had their doubts about backing a guy hounded by unsavory allegations.

Newton threw for three touchdowns against the ninth-ranked Crimson Tide. He ran for another score. And a day that started as if Auburn might be headed for a staggering blowout ended with No. 2 taking a victory lap around Alabama's hallowed field.

"Cameron Newton is physically and mentally as tough as I've ever seen," Auburn coach Gene Chizik said. "Period."

When Auburn fell behind 24-0 in the first half, it looked as though all those turned off by the prospect of Newton hoisting the Heisman and national-championship trophies after his father was accused of seeking a huge payout might not have to worry about it.

Not so fast.

Newton again rallied a team that has trailed in eight of its 12 games, leaving the crowd of 101,821 in disbelief. Well, except those orange-clad faithful crammed into one end of the stadium amid all the crimson, celebrating a win that no one could have seen coming just a couple of hours earlier — the biggest comeback in school history.

Newton had a 1-yard TD run and threw scoring passes of 36 yards to Emory Blake, 70 yards to Terrell Zachery and a 7-yarder to Philip Lutzenkirchen with 11:55 remaining that gave Auburn its first lead of the day.

It held up, keeping the Tigers perfect heading to next week's Southeastern Conference championship game against South Carolina.

If Auburn wins that one, the reward will certainly be a berth in the national title game.

"That's the kind of team we have," Zachery said. "We never give up." —

Highlights

R Auburn stages its biggest comeback ever, rallying from a 24-0 deficit to stun Alabama.

• Tigers quarterback Cam Newton throws for three touchdowns and runs for the other.

• Mark Ingram and Greg McElroy have costly fumbles deep in Auburn territory, and Trent Richardson drops a sure TD pass. —

Friday's Top 25 scores

• No. 1 Oregon vs. No. 20 Arizona

• No. 2 Auburn 28, No. 9 Alabama 27

• No. 3 Boise State vs. No. 19 Nevada, late

• No. 16 Nebraska 45, Colorado 17