The Penguins have traded defenseman Darryl Sydor to Dallas for defenseman Philippe Boucher.
Boucher, 35, is a righthanded shot who has no goals and three assists in 16 games with the Stars.
Sydor, 36, played in eight of the Penguins' first 17 games, recording one goal and one assist. He won a Stanley Cup with the Stars in 1999.
Both players have a salary-cap hit of $2.5 million this season and will be unrestricted free agents next summer.