Hearts will decide over the next 24 hours whether to appeal against the red card shown to Takis Fyssas in their New Year's Day clash with Celtic.
The Greek full-back was sent off with 14 minutes remaining for a foul on Celtic striker Shaun Maloney.
The Tynecastle side had been leading 2-1 but went on to lose 3-2 after Stephen McManus grabbed a late double, allowing Celtic to extend their lead at the top of the Bank of Scotland Premier League to seven points.
Hearts head coach Graham Rix disputed the red card after the game, claiming television replays showed Fyssas did not make contact with Maloney.
The furious Jambos boss also claimed referee Iain Brines changed the course of the game with his decision, saying: "There are a few things the referee has to think about before he sends him off. But I got the impression he couldn't wait to send him off. It changed everything."
Hearts chiefs are now mulling over whether to lodge an appeal with the Scottish Football Association.
A club spokesperson said: "Hearts will be studying tapes of the game in relation to the sending-off of Takis Fyssas.
"The club will consider this in detail over the next day or so and make a judgement on whether to refer the matter to the SFA."
Paul Hartley and Neil Lennon could face trial by television following the clash.
Hearts star Hartley appeared to be caught on camera lashing out at Ross Wallace, while Celtic captain Lennon could be punished for an off-the-ball kick aimed at Steven Pressley.
Both incidents were missed by referee Iain Brines, in a match where he issued eight yellow cards and sent off Fyssas in controversial circumstances.
The Scottish Football Association's offices re-open on Wednesday, following the holiday period, and top of the agenda will be deciding whether the review panel should view footage of those incidents.
Retrospective punishment has been handed out in the past for potential red card offences missed by match officials.
If the review panel members decide there is a case to answer, the player will be asked to appear before the SFA's Disciplinary Committee.
Their next meeting is scheduled for January 31.
An SFA spokesman said: "It will be the usual process for incidents not seen by the match referee, which are deemed to be significant.
"If the matter is taken forward, copies of the match footage will be obtained from Setanta and sent to the review panel.
"If the members of the panel do consider the incidents serious enough, the issue will be dealt with by the disciplinary committee."
Celtic moved seven points clear of Hearts at the top of the Bank of Scotland Premier League after fighting back from two goals down to win 3-2, sparking ugly scenes as fans attempted to attack the Celtic dug-out.
The SFA are keen to clamp down on crowd trouble at matches and the Tynecastle club will now be sweating over the arrival of the referee's report at Hampden.
The spokesman added: "Any action depends on the content of the referee's report.
"If police consider the incident serious enough they will notify the referee who, in turn, will notify the SFA."