ENGLEWOOD, Colo. -- Denver Broncos coach John Fox has seen enough to name Kyle Orton his starting quarterback.

What he hasn't determined is who's No. 2.

Fox said Tim Tebow and Brady Quinn have two more preseason games to win the job as Orton's primary backup.

Kyle Orton, right, was named the Broncos' starting quarterback on Monday, while Tim Tebow, left, will have to fight for the No. 2 job. AP Photo/Barry Gutierrez

Because the league's new rules don't mandate teams designate their quarterback rotation on gameday any more, the winner of that QB competition might remain a mystery, however, barring an injury to Orton.

The Broncos began training camp trying to trade Orton but when no teams made an offer, they opened the competition and Orton quickly showed he was the best of the bunch.

He's gotten almost all the work with the starters.

"Well, we've talked to the quarterbacks, in particular Kyle," Fox said after practice Monday. "We're going to name him the starter for the opener against the Raiders (on Sept. 12). We've not really reached a conclusion on 2 or 3 yet, and won't, probably, until after the preseason games."

Orton's starting status hasn't really been in doubt since the first day of training camp, when he showed the gulf between him and the others was still enormous.

"He's played very well. He has great command of the offense, I think he has the most experience in this offense, and I think that's been evident," Fox said.

Tebow, who started the final three games last season and thought he'd be coming into camp as the incumbent, might slip to the No. 3 job as he continues to struggle with accuracy and mechanics while Quinn shows vast improvement from last year, when former coach Josh McDaniels didn't play him at all during the regular season.

Here's how the QB competition breaks down:

• Orton has a 110.0 passer rating in the preseason. He drove Denver to two touchdowns in three drives Saturday night and has completed 12 of 19 passes for 172 yards and a touchdown with no interceptions.

• Quinn has a 95.1 QB rating. He's completed 18 of 30 passes for 250 yards, two TDs and an interception against Buffalo that looked like it hit the ground and should have been ruled an incompletion. The play ended the half and wasn't reviewed, however. He drove Denver to a field goal and a touchdown after that.