article_snippet: George North was knocked out for the third time in six weeks playing for Northampton on Friday .
article_snippet: George North lies motionless after being knocked out as Wales lost to England in the Six Nations .
article_snippet: I thought about rookie linebacker Chris Borland yesterday morning when I read that George North had been knocked out again following a blow to the head during Northampton’s victory over Wasps on Friday.
article_snippet: Six weeks ago, George North appeared to be knocked out twice in the course of Wales’ Six Nations defeat to England at the Millennium Stadium.