England prop Joe Marler has been cited for allegedly striking an opponent in his side's Six Nations victory over Wales at Twickenham on Saturday.
The charge relates to an incident which occurred in the 15th minute of England's 25-21 triumph, when Marler appeared to land a forearm in the face of Wales front row Rob Evans while trying help team-mate Dan Cole ground the ball over their opponents' try-line.
Marler is alleged to have broken Law 10.4 (a), which applies to punching or striking and says "a player must not strike an opponent with the fist or arm, including the elbow, shoulder, head or knee(s)".
In an eventful first half for Marler, the Harlequins loosehead appeared to land a forearm in the face of Wales front row Rob Evans while trying to help team-mate Dan Cole ground the ball over the Welsh try-line.
The offence carries an entry-point sanction of two weeks and he will appear before a Six Nations disciplinary hearing this week and the verdict could rule him out of England's Grand Slam match against France in Paris.
Marler is also being investigated for an incident of alleged verbal abuse, for which he apologised to Wales prop Samson Lee on Sunday.