George North on the mend following double head injury
Wales wing George North has started his return-to-play protocol after suffering two blows to the head during last Friday's RBS 6 Nations opener against England in Cardiff.
The juggernaut wing took an accidental boot to the head from England lock Dave Attwood in the first half, and he was temporarily replaced by Liam Williams while he underwent mandatory concussion assessment.
North subsequently returned to the field, but he then clashed heads with team-mate Richard Hibbard during the second half in what appeared to be a worse incident, and which attracted attention from rugby union's global governing body World Rugby.
North did not go off a second time, playing on as England started their Six Nations season with a 21-16 victory.
World Rugby subsequently requested "a full report" from Welsh rugby chiefs.
In an interview to WRU TV that was posted on the Welsh Rugby Union's official website on Monday night, WRU national medical manager Prav Mathema said: "George, since the incident actually on Friday, has been symptom-free the whole time.
I was appalled by the treatment of George North by the Welsh medical team on Friday. Nobody that saw the replay can be neutral on concussion— George Hook (@ghook) February 9, 2015
"Post-match he was symptom-free, today he has also been evaluated and he has shown no signs and symptoms of any concussion.
"And because of that he has actually started his return-to-play protocol already, and there has been no issue with the first stages of that.
"He has to go through that process for the rest of the week, having a step-by-step increase in his activity, and we will evaluate whether or not he will be fit for selection this weekend."
Wales resume their Six Nations campaign against Scotland at Murrayfield next Sunday.