The Kansas City Chiefs have released their first depth chart of the 2010 regular season.

Here are the highlights:

• Derrick Johnson and Jovan Belcher are on the first team
• Casey Wiegmann is on the first team
• Ryan O'Callaghan is not listed as injured any more and on the first team
• Barry Richardson is backing up both offensive tackles

Here's the full depth chart:

OFFENSE

WR: Chris Chambers, Terrance Copper, Jeremy Horne

LT: Branden Albert, Barry Richardson

Richardson is now backing up both offensive tackle positions.

LG: Brian Waters, Jon Asamoah

C: Casey Wiegmann, Rudy Niswanger

For the first time, Wiegmann is listed on the first team.

RG: Ryan Lilja, Jon Asamoah

RT: Ryan O'Callaghan, Barry Richardson

O'Callaghan is back in the driver's seat after being listed as injured the last two weeks.

TE: Leonard Pope, Tony Moeaki, Jake O'Connell

WR: Dwayne Bowe, Dexter McCluster

QB: Matt Cassel, Brodie Croyle

FB: Tim Castille, Mike Cox

RB: Thomas Jones, Jamaal Charles, Jackie Battle

DEFENSE

LDE: Tyson Jackson, Shaun Smith, Alex Magee

NT: Ron Edwards, Anthony Toribio

RDE: Glenn Dorsey, Wallace Gilberry

LOLB: Mike Vrabel, Andy Studebaker

LILB: Jovan Belcher, Corey Mays, Justin Cole

RILB: Derrick Johnson, Demorrio Williams, Cory Greenwood

ROLB: Tamba Hali, Cameron Sheffield

LCB: Brandon Flowers, Travis Daniels, Jackie Bates

RCB: Brandon Carr, Javier Arenas

SS: Eric Berry, Donald Washington, Reshard Langford

Washington makes an appearance at strong safety. He was listed at free safety last week.

FS: Jon McGraw, Kendrick Lewis

SPECIAL TEAMS

P: Dustin Colquitt, Ryan Succop

K: Ryan Succop, Dustin Colquitt

KO: Ryan Succop, Dustin Colquitt

PC: Thomas Gafford, Andy Studebaker, Cory Greenwood

KC: Thomas Gafford, Andy Studebaker, Cory Greenwood

H: Dustin Colquitt, Brodie Croyle

PR: Javier Arenas, Dexter McCluster

KR: Javier Arenas, Dexter McCluster, Jeremy Horne