ENGLEWOOD, Colo. -- Quarterback Trevor Siemian has no trouble remembering every in-game moment from his rookie season with the Denver Broncos.

That's because with two seconds remaining in first half of what became the Broncos' Dec. 20 loss in Pittsburgh, with Brock Osweiler in the locker room, Siemian took his first, and only, regular-season snap: a kneel down, after which he flipped the ball to a nearby official.

"He was ready if we needed him," Broncos coach Gary Kubiak said. "We like what Trevor did, how he prepared and I expect him to take that big jump … we're going to push some, he knows that."

Siemian also doesn't get much play in the almost constant public discourse about the Broncos' depth chart at the position. Peyton Manning retired, Osweiler left and the Broncos made a trade to get Mark Sanchez.

Kubiak and executive vice president of football operations/general manager John Elway have not handed Sanchez the starting job, but when they talk about their confidence in Sanchez, it's as if he will be the starter.

The Broncos also selected Paxton Lynch in the first round of the draft. Kubiak and Elway have already said they are confident Lynch could be a future. He was the player they targeted in the first round and traded up five spots to select.

Given all that, does Siemian, a seventh-round pick in the 2015 draft, believe he'll get a legitimate shot to compete for a job that seems to be another quarterback's now and another quarterback's later?

"Absolutely," Siemian said. " … "I think I don't try and do anything crazy. I think if I play my best football, I've got a chance. I'm going to take it one day at a time and go from there."

Siemian, whose senior season at Northwestern in 2014 ended with a torn ACL, carved out a spot on a Broncos' roster that already included Manning and Osweiler because of his arm strength -- "no doubt he has a pro arm," Kubiak has said.

The Broncos saw enough in the preseason and training camp, that they did not risk putting him on the practice squad where any team could have signed him. And in a stretch run toward a Super Bowl last season, with Manning trying to return from a foot injury, Siemian was the team's No. 2 quarterback.

"Absolutely, it was a great opportunity for me last year to learn a lot obviously from Brock and Peyton," Siemian said. "At this point, I'm kind of getting antsy to apply some of those things I picked up from those guys. It's a great opportunity for me and I'm ready to get to it."

Siemian has the most experience in the Broncos' offense. And when Sanchez invited several of his teammates, including Siemian, to California earlier this year, it was Siemian who was the main resource for Sanchez.

Kubiak and Elway don't plan, at least for now, to add a fourth quarterback before training camp because they don't want to limit any of the practice snaps available for Sanchez, Siemian and Lynch.

"He's been just an impressive, young guy," Sanchez said. "For a young guy going into his second year and not playing as much like you said, he's got a good grip on the system and really helped out in California. He was almost like a player-coach kind of thing in helping me out with reads and footwork and things like that."

"I knew in the offseason there were going to be some changes," Siemian said. " … I'm finding out pretty quickly that you have to be ready for anything in this business. It's a new room. It's a new group. I'm excited to get Paxton in here. I think we've got a great group of guys so far … I'll just give it my best shot and try to play my best ball."