Dundee United striker Nadir Ciftci is facing a two-match suspension after being accused of violent conduct against Inverness Caledonian Thistle.
That would rule the 23-year-old Turk out of the Scottish Cup quarter-final and the 21 March Scottish Premiership game, both against Celtic.
He has been accused of striking Caley Thistle defender Gary Warren "upon his neck or head with your arm".
United are to contest the ban and the striker now faces a hearing on 5 March.
They had until Friday to lodge an appeal but said on their club website that they have already "refused the fixed suspension offer".
The notice of complaint by Scottish FA compliance officer Tony McGlennan follows Tuesday's game in which United goalkeeper Michal Szromnik and Warren were both sent off.
Warren was shown a red card after clashing with Ciftci in the incident that has led to the Turk being disciplined after the match.
Should he fail to overturn the ban, it will rule the striker out of three consecutive matches against Celtic.
He will already miss the Scottish League Cup final on 15 March through suspension.
Ciftci is available to United manager Jackie McNamara for Saturday's Premiership visit by Partick Thistle.