Joe Marler has been cited by the Six Nations commissioner for grabbing Wales captain Alun Wyn Jones' penis in Saturday's match at Twickenham.
The England prop was caught by TV cameras smirking as he groped the Wales skipper between the legs.
The incident was missed by all officials, including the TMO, much to the dismay of the second row.
But citing commissioner Peter Ferguson has acted and Marler will go in front of Six Nations disciplinary chiefs in Dublin on Thursday. According to the rules, the low-end entry point for grabbing, twisting or squeezing the genitals is a 12-week ban.
England team-mate Courtney Lawes has also been cited for a dangerous tackle on Jones in their 33-30 victory and will have his case heard on Thursday in the Irish capital.
A statement issued by the Six Nations, said: "Joe Marler has been cited for an alleged infringement of Law 9.27 (A Player must not do anything that is against the spirit of good sportsmanship – Hair pulling or grabbing; Spitting at anyone; Grabbing, twisting or squeezing the genitals (and/or breasts in the case of female players) during the Guinness Six Nations England v Wales match last Saturday."
On the Lawes citing they added: "The England No. 6 Courtney Lawes has been cited for an alleged infringement of Law 9.13 (A player must not tackle an opponent early, late or dangerously.
"Dangerous tackling includes but is not limited to tackling or attempting to tackle an opponent above the line of the shoulders even if the tackle starts below the line of the shoulders) during the Guinness Six Nations England v Wales match last Saturday."
England centre Manu Tuilagi was sent off late in the match for a dangerous tackle on Wales wing George North and the Leicester Tigers star is also set to have his hearing in Dublin on Thursday.
England Under-20s full-back Freddie Steward has been cited for a dangerous tackle in their Six Nations defeat to Wales in Gloucester on Friday night and will have a disciplinary hearing in London on Tuesday.
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