PITTSBURGH -- The first edition of the 2017 Steelers is set. It won't be for long.

Pittsburgh released the initial 53-man roster it submitted to the NFL on Saturday by 4 p.m. And it included some light surprises following the trade of Sammie Coates and a 2019 seventh-round pick to the Cleveland Browns for a 2018 sixth-round selection.

Rosters are frozen until noon on Sunday and 10-man practice squads can be named an hour later. Players who the Steelers want to put on the injured-reserve list with a designation for return - they can bring two back - would have to be on the initial 53-man roster.

With as much in mind, here is that season-starting list:

(Note: I know the numbers add up to 54. Bell was included for the sake of not kidding one's self).

(AP/Keith Srakocic)

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Quarterbacks (3)

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Ben Roethlisberger

Landry Jones

Joshua Dobbs

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The skinny

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Bart Houston seemed like a pretty nice guy.

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Wide receivers (6)

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(AP/Jared Wickerham)

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Antonio Brown

Martavis Bryant

Eli Rogers

JuJu Smith-Schuster

Justin Hunter

Darrius Heyward-Bey

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The skinny

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Coates got outplayed by Hunter in preseason action and Heyward-Bey's ability to fill in at all three receiver spots and be an ace gunner kept him in Pittsburgh.

Demarcus Ayers, Marcus Tucker and Cobi Hamilton look like solid practice squad candidates, in that order.

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Running backs (3+1)

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(AP Photo/Ron Schwane)

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Le'Veon Bell

Terrell Watson

James Conner

Roosevelt Nix

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The skinny

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Watson won himself a spot that was especially not guaranteed to him considering the presence of veterans Knile Davis and Fitzgerald Toussaint. Pittsburgh may use him situationally later in the year once Bell is fully up to football-in-pads conditioning, but he looks likely to begin the season as the primary backup with some workload.

Note: Bell hasn't signed his franchise tag tender.

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Tight ends (3)

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(AP Photo/John Froschauer)

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Jesse James

Vance McDonald

Xavier Grimble

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The skinny

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McDonald, the man pictured above, clearly nudged David Johnson, despite Johnson having the most impressive training camp of any tight end on the roster. Grimble getting getter at blocking, though, did make Johnson less necessary.

Expect a rotation to start the season and if Pittsburgh can establish a go-to, do-it-all tight end, then you may see a lot more of the Steelers in the no-huddle.

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Offensive linemen (9)

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(AP Photo/Keith Srakocic)

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Maurkice Pouncey, C

Ramon Foster, LG

David DeCastro, RG

Alejandro Villanueva, LT

Marcus Gilbert, RT

Chris Hubbard, OL

B.J. Finney, C/G

Jerald Hawkins, OT

Matt Feiler, OL

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The skinny

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Pittsburgh was able to trim enough elsewhere to keep nine on the offensive line, where the Steelers have survived and thrived on depth in recent seasons. Hawkins got by despite a poor camp and preseason showing.

Feiler, a Lancaster native and Bloomsburg (Pa.) alum has now made his first 53-man NFL roster.

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Defensive linemen (6)

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(AP Photo/Keith Srakocic)

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Cameron Heyward, DE

Stephon Tuitt, DE

Javon Hargrave, NT

Tyson Alualu, DE

L.T. Walton, DL

Daniel McCullers, NT

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The skinny

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Despite showing very little in the first few preseason games, McCullers seems to have stuck around on the flashes he showed in the finale against the Panthers.

Lavon Hooks and Johnny Maxey wait for returns to the practice squad.

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Inside linebackers (4)

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(AP/Keith Srakocic)

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Ryan Shazier

Vince Williams

Tyler Matakevich

L.J. Fort

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The skinny

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The versatility of Matakevich and Shazier makes it easier for Pittsburgh to run just four-deep here to start the season. Steven Johnson had been nursing a hamstring injury.

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Outside linebackers (5)

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(Ap/Gene J. Puskar)

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Bud Dupree

James Harrison

T.J. Watt

Anthony Chickillo

Arthur Moats

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The skinny

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There were never any serious challengers to any of the players listed here. If the roster had really, really tightened maybe Moats could've gone, but he's a special teams contributor, too.

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Safeties (4)

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(AP Photo/Ed Zurga)

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Sean Davis

Mike Mitchell

Robert Golden

Jordan Dangerfield

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The skinny

Only two of these players are fully healthy. Mitchell hasn't practiced with the team since July 30 and Dangerfield suffered a mild ankle sprain against the Panthers.

William Gay could slide back here in an utter emergency, but this is by far the thinnest part of the roster. If multiple players go in injured-reserve with possible return designations, look for reinforcements to come here.

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Cornerbacks (7)

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(AP Photo/Keith Srakocic)

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Artie Burns

Coty Sensabaugh

William Gay

Joe Haden

Mike Hilton

Brian Allen

Cameron Sutton

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The skinny

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Pittsburgh shipped Ross Cockrell to one of the many teams in the NFL that needs cornerback help, the New York Giants, freeing up a roster spot for Brian Allen. The fifth-round pick would've been a risk to place on waivers and the practice squad, so the project continues on the active roster.

Tomlin said Thursday night that Sutton reaggravated the right hamstring injury that kept him out of most of camp. If the Steelers use the short-term IR, expect it to be on Sutton. At that point, Bell can come onto the 53-man roster by signing his franchise tag tender.

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Specialists

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Chris Boswell, K

Jordan Berry, P

Kameron Canaday, LS

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The skinny

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A Canadian flag hands over Canaday's locker in the corner of the room that James Harrison calls The Trap. Canaday beat out sixth-round pick Colin Holba to stay in that locker room. Berry and Boswell were uncontested.

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