Springbok lock Eben Etzebeth has been cited for making contact with the "eye or eye area" of Scotland fly-half Greig Laidlaw.
The alleged incident occurred in the second half of the Springboks' 21-10 victory over Scotland at Murrayfield on Saturday.
Etzebeth will appear before an IRB disciplinary hearing today and if found guilty faces a lengthy ban, which could include the Springboks' Test against England at Twickenham on Saturday.
Meanwhile, Springbok team doctor Craig Roberts says winger JP Pietersen is doubtful for Twickenham on Saturday.
Roberts says Pieteren picked up a groin strain against Scotland and did not practice yesterday afternoon.
