Denver Broncos announced they have nullified the March 2 trade with the Miami Dolphins for defensive tackle Dan Wilkinson.

Kansas City Chiefs signed safety Jon McGraw to a two-year contract.

Jacksonville Jaguars re-signed/unrestricted free agent RB LaBrandon Toefield to a one-year contract.

Oakland Raiders re-signed/unrestricted free agent CB Duane Starks.

Denver Broncos agreed to terms with CB Dre Bly on a contract extension.

San Francisco 49ers agreed to terms with RB Frank Gore on a four-year contract extension.

Houston Texans re-signed RB Chris Taylor and QB Bradlee Van Pelt.

Oakland Raiders signed QB Jeff Otis.

New York Giants signed LB Kawika Mitchell to a one-year contract.

New York Giants signed LB Kawika Mitchell to a one-year contract, re-signed OL Grey Ruegamer.

Pittsburgh Steelers re-signed S Tyrone Carter to a three-year contract.

Houston Texans matched the New York Giant's offer sheet for FB Vonta Leach.

Philadelphia Eagles acquired LB Takeo Spikes and QB Kelly Holcomb from the Buffalo Bills for DT Darwin Walker and a conditional pick in the 2008 draft.

Detroit Lions signed OG Zach Piller, released DT Anthony Bryant.

Carolina Panthers signed DE Dave Ball, S Deke Cooper, CB Curtis Deloatch and DT Chad Lavalais.

ew Orleans Saints re-signed WR Terrance Copper to a one-year contract.

Tampa Bay Buccaneers claimed DB Adam Johnson off waivers from the Kansas City Chiefs.

Dallas Cowboys signed S Ken Hamlin.

Seattle Seahawks re-signed WR Bobby Engram to a multiyear contract.

Arizona Cardinals signed FB Terrelle Smith and DL Chris Cooper to two-year contracts.

New York Jets signed DE Michael Haynes.

Houston Texans acquired QB Matt Schaub and the No. 10 2007 draft pick from Atlanta for the eighth 2007 draft pick and 2008 and 2009 second-round draft picks.

Oakland Raiders signed QB Josh Booty.

Washington Redskins released WR David Patten.

Chicago Bears traded a 2007 sixth-round draft pick to Washington for S Adam Archuleta.

Kansas City Chiefs re-signed DE Jimmy Wilkerson to a one-year contract.

Philadelphia Eagles signed DT Montae Reagor to a three-year contract.

New England Patriots re-signed WR Bam Childress.

Cleveland Browns signed OL Lennie Friedman to a one-year contract. Named Kevin Mack assistant director of player programs.

Houston Texans signed LB Shawn Barber and released P Cameron Muro.

Denver Broncos agreed to terms with WR Brandon Stokley on a one-year contract.

Washington Redskins re-signed OL Todd Wade.

Denver Broncos signed DT Alvin McKinley to a four-year contract.

New England Patriots signed CB Eddie Jackson.

Miami Dolphins re-signed FB Kyle Eckel and CB Michael Lehan to one-year contracts.

New York Jets re-signed OT Anthony Clement.

Denver Broncos signed QB Patrick Ramsey and released DE Courtney Brown.

New York Giants signed FB Vonta Leach to a four-year offer sheet.

Green Bay Packers released LB Kurt Campbell.

Detroit Lions signed WR Shaun McDonald to a two-year contract.

San Francisco 49ers signed LB Colby Bockwoldt, re-signed DE Bryant Young, CB Donald Strickland and LB Hannibal Navies.

Tampa Bay Buccaneers signed LB Cato June.

Pittsburgh Steelers signed CB Chidi Iwuoma to a one-year contract.

Cleveland Browns signed DL Robaire Smith to a four-year contract and DL Shaun Smith.

Kansas City Chiefs re-signed DT Ron Edwards.

Philadelphia Eagles re-signed RB Correll Buckhalter to a two-year contract.

Houston Texans signed DT Jeff Zgonina.

Philadelphia Eagles agreed to terms with WR Kevin Curtis on a six-year contract.

Arizona Cardinals signed WR Sean Morey to a three-year contract.

Cleveland Browns signed OL Sean McKinney to a one-year contract and termined the contract of FB Terrelle Smith.

Indianapolis Colts signed LB Mike Labinjo and QB John Navarre.

Washington Redskins re-signed TE Todd Yoder to a three-year contract.

San Francisco 49ers signed DE John Syptak and assigned him to NFL Europe.

New England Patriots signed WR Donte' Stallworth and WR Kelley Washington.

New England Patriots signed WR Kelley Washington.

Buffalo Bills re-signed CB Kiwaukee Thomas.

New York Jets named Mike Jones assistant strength and conditioning coach, Ben Kotwica quality control-special teams and defense, Mike Bloomgren and Brian Smith quality control-offense.

Denver Broncos re-signed DE Kenny Peterson.

Green Bay Packers signed CB Frank Walker to a one-year contract.

Detroit Lions signed CB Travis Fisher to a one-year contract.

New Orleans Saints signed S Kevin Kaesviharn to a four-year contract.

Seattle Seahawks signed S Brian Russell and TE Marcus Pollard.

Buffalo Bills re-signed RB Anthony Thomas.

New York Jets re-signed OT Wade Smith.

Tennessee Titans agreed to terms with LB Ryan Fowler on a four-year contract.

Washington Redskins re-signed DL Ryan Boschetti.

Detroit Lions agreed to terms with WR Shaun McDonald on a two-year contract.

New York Jets re-signed OL Wade Smith.

Pittsburgh Steelers signed OL Sean Mahan to a five-year contract.

Oakland Raiders signed FB Justin Griffith to a three-year contract and TE Fred Wakefield and TE Tony Stewart to one-year contracts.

Arizona Cardinals signed CB Roderick Hood to a five-year contract.

Miami Dolphins re-signed DT Kevin Vickerson and allocated him to NFL Europe.

Cleveland Browns traded RB Reuben Droughns to the New York Giants for WR Tim Carter and terminated the contract of CB Daylon McCutcheon.

Houston Texans signed OT Jordan Black.

Denver Broncos announced the retirement of QB Jake Plummer.

Oakland Raiders signed RB Dominic Rhodes to a two-year contract.

Dallas Cowboys re-signed OT Marc Colombo.

Buffalo Bills traded RB Willis McGahee to the Baltimore Ravens for a 2007 third- and seventh-round draft picks and a 2008 third-round draft pick.

New York Jets signed FB Darian Barnes.

Cincinnati Bengals signed TE Reggie Kelly to a three-year contract.

Philadelphia Eagles agreed to terms with WR/KR Bethel Johnson on a one-year contract.

Washington Redskins signed OL Ross Tucker.

Atlanta Falcons agreed to terms with WR Joe Horn.

St. Louis Rams agreed to terms with TE Randy McMichael on a three-year contract.

Arizona Cardinals signed S Terrence Holt to a five-year contract.