1. Drew Lock

Coach Vic Fangio said Lock will see significant playing time as the Broncos’ third quarterback. Lock was 7-of-11 passing for 34 yards against Atlanta. Situational management (avoiding taking needless timeouts and delay of game penalties) and accuracy (putting the football in a spot for his pass-catchers to gain yards) will be two keys for Lock. “All these quarterbacks are different about how they adapt and become an NFL quarterback,” Fangio said. “He’s not there yet, but that’s to be expected.”

2. Malik Reed

Reed, an undrafted free agent from Nevada, had four tackles and one sack in 33 snaps against Atlanta, showing a good burst around the edge. The Broncos could keep as many as five outside linebackers and it’s assumed Dekoda Watson and Justin Hollins are Nos. 3-4 behind Von Miller and Bradley Chubb. Reed should be considered the favorite over Jeff Holland. Reed knows how to get to the quarterback — 22 sacks in 50 college games. Of Reed, Chubb said: “Me and Von both knew that he was going to be a ‘dog’ out here. I’m glad to see him doing his thing.”

3. Devontae Booker

Is there room for Booker on the Week 1 roster after the signing of Theo Riddick? Have to think it’s a long shot because the Broncos don’t really need to keep four tailbacks, especially at the expense of a sixth receiver or fourth tight end. If Booker gets significant action (and it would make sense to hold him out), he should treat it as an audition for the other 31 teams, a veteran capable of catching the football out of the backfield, protecting the quarterback and returning kickoffs. “He shows a real knack for running the ball and he shows a real understanding in the pass game of how to run routes,” quarterback Joe Flacco said.

4. Kieshawn Bierria

A 16-game player on special teams last year (293 snaps) who played only 18 snaps on defense, Bierria started camp as a third-string player at inside linebacker. But injuries to Todd Davis, Josey Jewell and Joe Jones have provided Bierria with an opportunity to show his ability on defense. He had three tackles in 26 plays last week. “It’s definitely night and day,” Bierria said of his Year 1 to Year 2 comfort level. “You’ve got to act like you’re a vet with how focused you need to be. It’s definitely gotten to the point where it’s just time to go out there and make plays.”

5. River Cracraft

Cracraft finished last year as the Broncos’ punt returner and started camp competing for that spot and the sixth receiver position. But an oblique injury on July 19 cost him nine practices and kept him out of the Atlanta game. Punt returner is Cracraft’s best and maybe only chance at sticking around for Week 1. “I think (special teams coordinator) Tom (McMahon) does a good job of getting everybody reps in the game and I’m sure everybody will get one or two (against Seattle) just like it was last week,” Cracraft said. “It’s just how you capitalize on your rep and that will maybe dictate what happens the following week.”

About the Seahawks

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Coach: Pete Carroll (10th year).

Additions: DE Ziggy Ansah, G Mike Iupati, WR DK Metcalf, S Marquise Blair, K Jason Myers and WR Gary Jennings.

Departures: S Earl Thomas, WR Doug Baldwin and DE Frank Clark.

Outlook: The Seahawks will be without Ansah and LB Bobby Wagner for their preseason opener. … WR Tyler Lockett leads the receivers, a group that was overhauled during the draft with the selections of Metcalf (round 2), Jennings (round 4) and John Ursua (round 7). … Former Broncos first-round QB Paxton Lynch, who was out of football in 2018 following his Labor Day Weekend release, is competing with Geno Smith to be Russell Wilson’s back-up. … Twin brothers Shaquem and Shaquill Griffin are expected to start at strong-side linebacker and cornerback, respectively.