Worcester prop Chris Horsman has been cited for stamping on an opponent and, if found guilty, will be forced to delay his international career with Wales.
Horsman, who now qualifies to play for the Six Nations champions after completing a three-year residency period last month, was expected to be named in Wales coach Mike Ruddock's autumn Test squad.
Ruddock plans to announce the squad next Tuesday for games against New Zealand, Fiji, South Africa and Australia.
But, instead of celebrating his international call-up, Horsman will be lining up before Rugby Football Union disciplinary chiefs in Bristol on the same day.
The 27-year-old forward has been cited for allegedly stamping on an opponent during Worcester's Guinness Premiership 22-15 victory over Leeds last Friday night.
The Premiership independent citing officer's decision to report Horsman could leave him facing a ban, if he is found guilty, of a month or more.
Worcester coach John Brain would not comment on the specifics of the citing, preferring to keep his counsel until he has studied the report and any video footage of the alleged incident.
But if his man is found guilty of the allegation, Brain is likely to accept the punishment handed down by the RFU beaks, despite the disappointment of losing a key front-row player.
Brain's support for the citing procedure remains unequivocal but he is disappointed at the delay in bringing the matter to a head.
"Before the start of the season the RFU made a statement that they were going to clamp down on foul play and everyone accepts that," Brain said last night. "No-one wants ill-discipline or foul play in the game.
"If people get away with acts of violence then it is right that there should be a citing committee to deal with it.
"The only thing that has surprised me is the length of time it has taken [for the charge to be made]. The alleged incident took place last Friday and I didn't hear about it until this morning. The hearing is not until next Tuesday.
"If they are to mete out justice they should do so swiftly." Horsman's hearing on Tuesday will be at the Bristol Hilton Holiday Inn in front of Christopher Quinlan ( chairman), Mike Curling and Keith Plain.
Because of the hearing Brain has decided not to select Horsman for the European Challenge Cup game against Montpellier tomorrow (2pm). He will be replaced by Tevita Taumoepeau who joined the front row in his stead early in the second half of the match against Leeds.
As well as having significant impact on Worcester, any ban handed to Horsman, would be another major blow for Ruddock, who has already lost injured Lions Gavin Henson, Tom Shanklin and Gethin Jenkins for the All Blacks clash on November 5.
London Irish lock Nick Kennedy, meanwhile, has also been cited for stamping, and has been summoned to attend a three-man RFU panel in London next Tuesday.
Kennedy's alleged offence occurred during the Exiles' Premiership defeat at Northampton last Saturday.