Hearts have appealed against Marius Zaliukas' red card during Saturday's 1-0 defeat at Aberdeen.
The 25-year-old defender was dismissed by referee Iain Brines in the second half at Pittodrie for his part in an incident involving former Hearts forward Lee Miller.
But the club have lodged an appeal with the Scottish Football Association after sport director Anatoly Korobochka, manager Csaba Laszlo and managing director Campbell Ogilvie met to discuss the incident on Monday.
Laszlo told Hearts News: "I hope that Mr Brines might rescind the red card.
"Marius is a lovely guy and a guy who is not prone to being aggressive or violent.
"We feel very sure having watched the DVD of the incident in real time and slow motion that it is right to make the appeal."
Zaliukas may now be available to take part in this weekend's Edinburgh derby against Hibernian, if the match official reviews the incident and concludes that the player was guilty of a lesser offence, or no offence at all.
The case would then be referred to the SFA's disciplinary review panel and - as the SFA offices close on Tuesday night - it would not be able to convene until next week, meaning Zaliukas would be available to play this weekend.
Meanwhile, the SFA have confirmed that no action will be taken against Hearts or Aberdeen following an alleged brawl in the tunnel after Saturday's game because the incident was not mentioned in the referee's report.