The alleged incident - effectively gouging - happened in the second half of the Springboks' 21-10 victory over the Scots at Murrayfield on Saturday.
Etzebeth, 21, will appear before an International Rugby Board disciplinary hearing on Tuesday and if found guilty he is likely to be banned for a minimum of three months, with three years the maximum penalty.
South Africa play England at Twickenham on Saturday.
Argentina prop Juan Figallo has been cited for head-butting France captain
Pascal Pape at the end of the Pumas' 39-22 defeat in Lille on Saturday night.
Figallo's hearing will take place on Wednesday and if found guilty he will be ruled out of their final autumn international against Ireland in Dublin on Saturday.
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The Barbarians are one of the top invitational rugby sides with a long history and classic rugby jersey.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Lions get ready for their matches with this green training jersey. It's what the players wear. Get in the Gear!
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The Lions are ready to get their Australia tour underway. They arrive in Perth on Monday.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.