article_snippet.sent: Northampton will await expert opinion before deciding when George North will next play after confirming the Wales wing will miss Saturday's European Champions Cup quarter-final at Clermont Auvergne after No 8 Nathan Hughes latest head injury.
article_snippet.sent: George North has been knocked unconscious three times in recent months, including in last Friday's 52-30 win over Wasps, and was on Wednesday being assessed by a neurologist. '
article_snippet.sent: George North lies motionless on the Franklin's Gardens turf after being knocked out against Wasps . '
article_snippet.sent: George North left the field unconscious after scoring the second of two tries in Saints' win, with Wasps forward Nathan Hughes sent off for dangerous play as the Wales wing touched down.
article_snippet.sent: George North also suffered blows to the head on Wales duty in the autumn and during the RBS 6 Nations when twice Nathan Hughes had head knocks in the opener against England, controversially continuing before being stood down for the Scotland clash.
article_snippet.sent: Former World Rugby medical adviser Dr Barry O'Driscoll says George North top try-scorer in the competition with seven this season - should not play again this term.
article_snippet.sent: Nathan Hughes arrives late as George North touches down - moments later Nathan Hughes leg connected with the wing's head .
article_snippet.sent: George North might have been eligible for Saturday's match, had George passed the return to play concussion protocols.
article_snippet.sent: George North scored a try and therefore there wasn't much anybody could do about that. '
article_snippet.sent: George North is congratulated after scoring the first of his two tries against Wasps on Friday night .
highlights_snippet.sent: George North knocked out after scoring against Wasps on Friday .
  
highlights_snippet.sent: George North will sit out Saturday's Champions Cup clash on medical advice .
  