Daniel Sedin was on his way back to Vancouver Thursday for further medical evaluation, Canucks assistant GM Laurence Gilman told ESPN.com. The Canucks play Thursday night in Dallas but will do so without Sedin. Sedin left Wednesday night's game in Chicago after suffering a head injury as a result of a elbow from Blackhawks defenseman Duncan Keith. The severity of Sedin's injury is not yet known, Gilman added.