Finn Russell has been banned for two weeks for his dangerous tackle on Dan Biggar in Scotland's loss to Wales on Sunday.
The Glasgow Warriors fly-half was sin-binned in the first half of the 26-23 loss after colliding with Biggar when he claimed a high ball.
He appeared today before an independent Six Nations Disciplinary Committee at Heathrow, having been cited under Law 10.4 (e) and (i) for an alleged dangerous tackle of an opponent in the air in the 31st minute of the game between Scotland and Wales on Sunday 15 February 2015.
The Disciplinary Committee, chaired by Mike Hamlin (England) along with Jean-Philippe Lachaume (France) and Pat Barriscale (Ireland), having heard from the player and his representative and viewed various TV angles of the incident, determined that Finn Russell had committed an act of foul play which merited a red card rather than the on-field yellow card given by the Match Officials.
The Disciplinary Committee decided that the offence should be categorised under Law 10.4 (i) and that it was reckless rather than deliberate. The Committee considered it at the lower end of World Rugby's scale of seriousness carrying a three-week suspension. It noted the absence of aggravating factors and the existence of certain mitigating factors, including the player's clear disciplinary record, in applying a one-week reduction from the entry point.
Finn Russell is suspended from playing until midnight on Sunday 1 March 2015 and has the right of appeal.
As a result, Russell will miss Scotland's next Six Nations clash against Italy in ten days, as well as Glasgow's Pro12 game with the Ospreys.
The SRU have since confirmed in a statement that they will appeal against the decision.
"We are disappointed by the outcome of today's discipline committee meeting, and subsequent suspension of stand-off Finn Russell.
"Following the arrival of the written sanction later this week, we intend to appeal."