Chicago Bears
Reached agreement on a three-year contract with tight end Fred Baxter.

Green Bay Packers
Re-signed safety Darren Sharper to a six-year contract

Named Brad Miller defensive assistant.

Miami Dolphins
Released receiver Tony Martin and running back Thurman Thomas.

New England Patriots
Released quarterback John Friesz and linebackers Marc Megna and Olrick Johnson.

Tennessee Titans
Named Everett Withers defensive backs coach.