Dunn's injury has been clarified as an upper-body problem with no clear timeline for a return, Scott Malone of Root Sports NW reports Thursday.
Dunn was rolling offensively prior to getting hurt with three goals and three assists, including two power-play points, in his previous seven outings. Whenever the blueliner does return to action, it will likely mean a return to the press box for Ryker Evans. For now, Dunn should probably be considered questionable to face Winnipeg on Friday.