Aston Villa striker Chris Sutton has been ruled out for six weeks with concussion and blurred vision.
Sutton now faces a lengthy spell on the sidelines
The 33-year-old was substituted during the second half of the Barclays Premiership game with Manchester United on 23 December.
Sutton has since seen a specialist and will be out until at least February.
Villa boss Martin O'Neill said: "The prognosis is that things will get
better but while he has got blurred vision he can't play."
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It is another major injury blow for Villa boss Martin O'Neill, who is already
without the services of another striker, Luke Moore, with a long-term shoulder
He must now decide whether to step up his search for re-inforcements in the January transfer window.