Hall was called for slashing after he was hit hard by Senators defenseman Eric Gryba at 11:04 of the period. He came out of the penalty box and stayed on the ice briefly before going to the dressing room with 6:42 left in the period.
The Canadian Press reported that Hall left following the game with his knee in a brace but without using use of crutches.
"I know it's his knee," coach Dallas Eakins said after the Oilers' 3-1 victory. "I don't know the severity of it. Our doctors will look at it and let us know. When a guy doesn't come back in the game, usually it's something that's going to be more than a day or two. But I have no idea right now."
Hall, the first pick of the 2010 NHL Draft, has three goals and five assists in nine games.
Well, for me this one's concerning, the way we performed. Because three games in, playing a desperate team on the road, I was expecting something else than this. Right now, I'm just disappointed. The other games, I thought we did some things that you can build off your game. There wasn't a lot accomplished in tonight's game.
— Blue Jackets coach Todd Richards after a 4-2 loss to the Sabres on Monday dropped Columbus to 0-3-0
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