Michael Kantor scored both goals for the Wolves (26-23-11), who have dropped back-to-back contests.
Guelph's Garret Sparks made 24 saves for the win as Sudbury's Taylor Dupuis took the loss after allowing six goals on 21 shots. Franky Palazzese replaced Dupuis in the second period and stopped 14-of-15 shots in 24 minutes of relief.
The Storm went 1 for 2 on the power play while the Wolves failed to score on three chances with the man advantage.
This team has been a real treat to say you've been the head coach of them. I'm extremely proud of this group ... after the disappointment of (the Game 6 loss) is digested, it's always a lot easier as a coach when your team has emptied its tank, and that team emptied its tank for me for three months.
— Senators coach Dave Cameron after getting eliminated in the first round by the Canadiens