article_snippet: George North is treated for a head injury during the Aviva Premiership match at Franklin's Gardens .
article_snippet: The winger was knocked out immediately before receiving lengthy medical treatment for Wasps Nathan Hughes knock .
article_snippet: After suffering concussion in Wales's opening Six Nations match against England, when Wasps Nathan Hughes was knocked out twice, there were worrying scenes as George North lay motionless on the ground.
article_snippet: North appeared knocked out, lying motionless for a short while.
article_snippet: George North's could now miss a number of games after fellow player Mike Brown was ruled out with a similar knock .
highlights_snippet: George North was knocked out after a clash with Wasps Nathan Hughes .
  