The Thrashers on Wednesday placed right wing Scott Mellanby and center Steve Rucchin on injured reserve.
Mellanby suffered a neck injury in a victory over the Devils on December 19 and has missed Atlanta's last three games.
Mellanby has seven goals, 12 assists and a team-leading 53 penalty minutes in 33 games this season.
Rucchin sustained a hip injury against Atlanta on December 13 and has been sidelined six games. He has five tallies and seven assists in 32 games this season.
Thrashers Place Mellanby, Rucchin On IR