Seguin (lower body) has been ruled out for Thursday's game against the Capitals and is considered day-to-day.
Seguin saw at least 14 minutes of ice time in each of his first three appearances of the season, but he's dealing with a lower-body injury that will force him to miss a second consecutive game. However, it doesn't appear as though the Stars expect him to miss significant time since he's labeled as day-to-day. His next chance to suit up will be at home against the Oilers on Saturday.