Duchene (lower body) was placed on injured reserve Wednesday, Sam Nestler of DLLS Sports reports.
Duchene was labeled doubtful for the Stars' season opener Friday, and this move suggests he will not play in that game. The 35-year-old is battling an injury that has bothered him since the start of training camp, and he recently suffered a setback in his recovery process. The Stars are likely to utilize seven defensemen in Duchene's absence, as they have no extra forwards on the roster.