South Africa lock Eben Etzebeth could be hit with a lengthy ban after being cited for making contact with the eye area of Scotland first five Greig Laidlaw during a test.
The Six Nations, which oversees disciplinary issues during autumn tests, says the alleged incident happened in the second half of Saturday's match at Murrayfield, which the Springboks won 21-10.
The 21-year-old Etzebeth will attend a disciplinary hearing on Tuesday. He is likely to be banned for between 12 and 24 weeks if found guilty. The maximum sanction for this type of offence is 156 weeks.
South Africa plays England on Saturday in the last match of its European tour.
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