Dublin - Saracens flank Jacques Burger has been cited over allegations of foul play during last Sunday's European Rugby Champions Cup quarter-final against Racing Metro.
The Namibia backrow forward has been accused of striking Racing and France scrum-half Maxime Machenaud in the 40th minute of the game at Stade Yves-Du-Manoir, which Saracens won 12-11, by citing commissioner Eugene Ryan of Ireland.
Now the case against Burger will be heard by independent judicial officer Simon Thomas (Wales) at a disciplinary hearing on Thursday.
World Rugby's low-end punishment for striking a player with hand, arm or fist is a two-week ban, with anything from eight to 52 weeks possible if the offence falls into the 'top end'.
Saracens return to English Premiership action against play-off rivals Leicester on Saturday, before facing Clermont in Saint Etienne on April 18 in their Champions Cup semi-final.