The mystery surrounding Daniel Paille's condition on Monday afternoon was cleared up when it was revealed that the B’s forward was suffering from “concussion-like symptoms” that started during their recently-concluded four-game road trip through Western Canada.

Paille was sent home to Boston for evaluation prior to last week’s game against the Edmonton Oilers after coming out of the lineup after team’s first game vs. the Maple Leafs.

It was unclear exactly when he was injured.

Claude Julien was careful not to officially label it a concussion and instead indicated that Paille was suffering from the symptoms associated with a concussion. It was unclear whether the symptoms were a recurrence of a previous concussion for Paille or if they were something new for the left winger.

Paille had been held scoreless in his last eight games leading up to his removal from the lineup, and it sounds like the forward is out indefinitely until the symptoms abate.

“Dan has been evaluated. He came to us when we first got to Calgary and talked about not feeling well," Julien said. "Once he got evaluated by our trainers it looked like concussion symptoms. So we sent him home to be evaluated by our doctors with what he’s had. It was an unfortunate thing that we found out in the last minute, so we scrambled to get a player out [to Calgary].