The Scottish Rugby Union have appealed against the yellow card shown to Sean Lamont during Saturday's RBS 6 Nations defeat by France.
The Northampton winger was sent to the sin-bin for 10 minutes midway through the second half after he was adjudged to have committed a late tackle on France centre David Marty.
But the SRU have contested the yellow card on the grounds of mistaken identity - because the culprit was Lamonts brother Rory.
Sean Lamont said after the game: They got it a bit wrong. I've got blond hair, my brother's got dark hair.
I'm not going to say what I really think because I'll get myself in trouble.
But I suppose it's a snap decision the officials have to make. Things happen quickly on the pitch.
The winger scored a try in a 46-19 defeat as France clinched the championship after overtaking Ireland on points difference in the dying seconds.
Meanwhile, Scotland scrum-half Mike Blair has undergone surgery to the edge of his collarbone and shoulder joint.
He was injured in Edinburghs Magners League victory over Llanelli Scarlets in January.
Following repair to the damaged tissue, Blair will be in a sling for three weeks before a two-month rehabilitation period.
Blair said: This is the first time Ive had a major injury in seven years and Ive found it frustrating having to sit and watch Edinburgh and Scotland and not be involved.
Im just looking forward to getting through the rehab period so I can get back to playing again as soon as possible.