Manning was asked during his weekly news conference Wednesday if there was a set of circumstances that would lead him to retire.
"I have not thought about those circumstances at all," he said. "So, I certainly plan on being back, if the Broncos will have me. But at this point, I'm kind of thinking about Oakland."
The Broncos (11-4) can earn a first-round bye with a victory at home over the Raiders (3-12).
Manning, 38, said he knows talk turns to the coaching carousel this time of year and "I get to fall into that category because maybe I'm closer to the same age as some of the coaches. But yeah, I have no plans along those lines. I'm enjoying playing."
Manning leads the NFL with 39 TD passes and his 102.9 passer rating and 4,454 yards passing both rank fourth. Although the Broncos have down-shifted their high-octane offense over the last several weeks to work on a better ground game, Manning has thrown just five touchdown passes to go with six interceptions in the past month.
Six Giants are fined
Game-breaking wide receiver Odell Beckham and five other New York Giants were fined a total of $72,400 for their actions in Sunday's melee-marred game in St. Louis.
While the NFL does not announce fines for this previous weekend's games until Friday, placekicker Josh Brown and defensive tackle Cullen Jenkins discussed the levies after being informed they were being docked.
Wide receiver Preston Parker and defensive end Damontre Moore were fined $15,000 apiece for taking part in a second-quarter brawl that started when Beckham was thrown to the ground well out of bounds by linebacker Alec Ogletree. Parker and Moore were ejected after the play, along with Rams defensive end William Hayes.
Beckham was fined $10,000 on the play for kicking at Ogletree after being thrown down.
Brown was docked $8,200 for making a kicking motion at a Rams player while on top of a pile following a kickoff return.
Long snapper Zak DeOssie was fined $8,200 for a late hit out of bounds on a punt return shortly after the melee. He was flagged for unnecessary roughness.
Quarterback Robert Griffin III has a sprained throwing shoulder that limited him in practice as the Washington Redskins prepared for their season finale against the Dallas Cowboys. Griffin appeared to be throwing normally during the portion of the workout open to reporters, but Coach Jay Gruden said the shoulder has some "lingering soreness." ... San Diego running back Ryan Mathews, who has an ankle injury, was among those not practicing and he could miss his third straight game Sunday when the Chargers play in Kansas City. ... Quarterback Andy Dalton was sent home with flu, one of four Cincinnati Bengals who missed a rain-soaked practice as they prepared to play the Pittsburgh Steelers on Sunday night for the AFC North title.