The Scotland international suffered concussion after a clash of heads with United defender Rafael during the second half, and was carried off on a stretcher after lengthy treatment on the pitch.
By
Reuters

Source:
Reuters
30 Oct 2013 - 10:57 PM  UPDATED 30 Oct 2013 - 11:00 PM

He was taken to hospital for precautionary reasons before being released.

Manager Chris Hughton said he would be assessed before a decision is made over his fitness for Norwich's clash with Manchester City on Saturday.

Winger Nathan Redmond is also in doubt after coming off with a hip injury.

(Reporting by Josh Reich, editing by Ed Osmond)