Carolina Hurricanes forward Sebastian Aho sustained a concussion and a lower-body injury Sunday after being hit by Mark Giordano of the Calgary Flames.

Aho, who leads the Canes in goals and points, will be sidelined indefinitely, the team said Monday. The Hurricanes said no surgery was required.

Aho was injured early in the third period of the Canes’ 4-1 loss at PNC Arena. Carrying the puck in the offensive zone, he took a knee-to-knee hit from Giordano while also being hit in the head by Giordano’s shoulder.

Giordano, the Flames’ captain, was given a match penalty for the contact to the head but the veteran defenseman faces no further NHL discipline, it was reported Monday in Calgary,

Aho was down for several minutes before being helped off the ice by head trainer Doug Bennett and teammate Marcus Kruger, favoring his left leg. Canes forward Justin Williams retaliated for the hit by dropping the gloves and trading punches with Giordano.

The Hurricanes are on their NHL-mandated bye week and do not play again until Saturday, when they have a road game against the Detroit Red Wings. The Canes face the Vegas Golden Knights on Sunday at PNC Arena.

Aho, 20, leads the Canes in goals (16), points (37), power-play goals (4) and game-winners (3).