Copper was an unrestricted free agent.
Copper was mainly a special teams player for the Chiefs in 2009 but did have one memorable catch in one memorable game.
Copper originally signed with the Chiefs last March. His familiarity with Todd Haley dates back to 2004 when he signed with the Dallas Cowboys as an undrafted free agent. Haley was with the Cowboys at that time.
Copper will turn 28 years old next week.
This is the second move the Chiefs have made in free agency. They re-signed RB Jackie Battle on Friday.