The rumor is confirmed by Martin St-Louis and it's concerning

Indeed, Kaiden Guhle will remain out, and there is fear that he may not return to play this season. It is quite clear that he is suffering from a concussion and has not yet started training in a regular jersey, while the season ends in 5 days.

It would be very wise, under the circumstances, to keep him out until September.

The coach also confirmed the rumor that Samuel Montembeault would play a second consecutive game for the first time in a while.

With Cayden Primeau's excellence since Jake Allen's departure, St-Louis had no choice but to use him more often. Therefore, Sam will have the task of stopping Patrick Roy's Islanders, as they are in a full playoff race.