The NHL's new concussion spotters were put to work Sunday night.

While taking in the game between the Edmonton Oilers and Buffalo Sabres, the crew called in Oilers goalie Jonas Gustavsson as a precaution.

"It was phoned in to our trainer - he had to go out," said Oilers coach Todd McLellan.

Gustavsson had been sprawled out when Oilers defenseman Adam Larsson fell backward, landing on the netminder's head and back.

The Oilers bench was soon informed that Gustavsson needed to leave the game to undergo the NHL's concussion protocol.

The move returned Cam Talbot to the Edmonton crease, who had been pulled after allowing four goals midway through the game. He allowed two more in the third period as the Oilers went on to a 6-2 loss.

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