JACKSONVILLE, Fla. — Peyton Manning jogged off the field with a relatively clean jersey.

No dirt spots. No grass stains. Barely even sweat marks.

It looked like Manning got the night off, much like some predicted since the Indianapolis Colts had already clinched a first-round bye and home-field advantage throughout the AFC playoffs.

It was misleading.

Manning threw for 308 yards and four touchdowns, including a 65-yarder to Reggie Wayne to go ahead for good, and the Colts stayed unbeaten with a 35-31 victory in a wild game against the Jacksonville Jaguars Thursday night.

"We've had some extremely close games," Manning said. "Do we feel fortunate to be undefeated? Certainly. Anybody that's followed us each week can go back to a lot of games and say, 'Boy, if we don't make that play, we're not undefeated."'

The Colts improved to 14-0 for the first time in franchise history and extended their NFL-record winning streak to 23 in the regular season. They also became the third 14-0 team in league history, joining the 1972 Miami Dolphins and 2007 New England Patriots. New Orleans can match the feat with a win over Dallas Saturday night.

"This is who we are," Wayne said. "We're built for 60 minutes. It won't be pretty all the time, but we're getting it done."

The back-and-forth game on a cool night included 714 yards, 43 first downs, 10 lead changes, six punts, several big plays and just two turnovers.

"This was an old-time shootout at the OK Corral," Colts coach Jim Caldwell said.

Jacksonville had a chance to win it in the closing minutes, but David Garrard overthrew Mike Thomas on a third-and-10 play with about a minute to play. Jacob Lacey intercepted the ball, and the Colts ran out the clock.

The Jaguars (7-7) lost for the third time in four games and no longer controls their fate in the AFC wild-card race.

"We were close, so close, to being in this locker room celebrating," cornerback Derek Cox said. "But there's no moral victories. It's about winning ... It's not in our hands anymore. But we still have two games left."