PHILADELPHIA (973espn.com) - The Eagles have released their first unofficial depth chart in advance of Thursday's preseason opener against Tampa Bay with wide receiver and cornerback remaining the most fluid positions.

The quarterback mix is obviously clear and the biggest surprises were veteran Brent Celek being listed in front of Zach Ertz at tight end, while Brandon Graham was listed as a co-starter at both right and left defensive end.

Meanwhile, the kicking competition has been trending toward Caleb Sturgis through camp and that was acknowledged on the depth chart as he was listed in front of Cody Parkey.

Here is the official, unofficial way things are looking:

Quarterbacks: Sam Bradford; Chase Daniel; Carson Wentz; Macleod Bethel-Thompson

Running Backs: Ryan Matthews; Darren Sproles; Kenjon Barner; Wendell Smallwood; Byron Marshall; Cedric O’Neal

Tight Ends: Brent Celek; Zach Ertz; Trey Burton; Chris Pantale; MJ McFarland

Wide Receiver (split end): Rueben Randle; T.J. Graham; David Watford; Xavier Rush; Deon Long

Wide Receiver (flanker): Nelson Agholor; Chris Givens; Marcus Johnson; Cayleb Jones

Wide Receiver (Slot): Jordan Matthews; Josh Huff; Paul Turner; Hunter Sharp

Left Tackle: Jason Peters; Matt Tobin; Andrew Gardner; Dillon Gordon

Left Guard: Allen Barbre; Isaac Seumalo; Malcolm Bunche

Center: Jason Kelce; Stefen Wisniewski; Josh Andrews; Bruce Johnson

Right Guard: Brandon Brooks; Stefen Wisniewski; Darrelle Greene; Barrett Jones

Right Tackle: Lane Johnson; Dennis Kelly; Halapoulivaati Vaitai

Left Defensive End: Vinny Curry/Brandon Graham; Alex McCalister; Bryan Braman

Under Tackle: Fletcher Cox; Mike Martin; Destiny Vaeao; Aziz Shittu

Nose Tackle: Bennie Logan; Beau Allen; Taylor Hart

Right Defensive End: Connor Barwin/Brandon Graham; Marcus Smith; Steven Means

SAM Linebacker: Nigel Bradham; Najee Goode; Myke Tavarres

MIKE Linebacker: Jordan Hicks; Joe Walker; Don Cherry

WILL Linebacker: Mychal Kendricks; Deontae Skinner; Quentin Gause

Left Cornerback: Leodis McKelvin; Jalen Mills; Eric Rowe; Denzel Rice; C.J. Smith

Right Cornerback: Ron Brooks; Nolan Carroll; Aaron Grymes; JaCorey Shepherd; Randall Evans

Safety: Rodney McLeod; Blake Countess; Ed Reynolds

Safety: Malcolm Jenkins; Jaylen Watkins; Chris Maragos; Nick Perry

Punter: Donnie Jones

Kicker: Caleb Sturgis; Cody Parkey

Holder: Donnie Jones; Chase Daniel

Punt Returner: Darren Sproles; Kenjon Barner; Paul Turner

Kickoff Returner: Josh Huff; Wendell Smallwood; Kenjon Barner

Long Snapper: Jon Dorenbos; John DePalma

-John McMullen covers the Eagles and the NFL for 973espn.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen