Tony Watt’s red card against Motherwell has been downgraded to a yellow following an appeal by Dundee United.
He will now be available for the trip to Glasgow to play Celtic on Saturday.
The forward was sent off during the Steelmen’s 1-0 Premiership win at Tannadice on Saturday following a clash with Sean Goss.
Referee John Beaton initially played on but decided to send Watt off after consulting the VAR monitor in the Premiership clash.
Dundee United launched a wrongful dismissal appeal against the decision on Monday and the SFA has now confirmed that a decision has been made to book the player instead.
Liam Fox cast doubt on the decision in his post-match interview saying there would have been a different outcome if the ref was shown the incident from another angle.
He said: “Having seen the footage that the referee and the VAR has seen I could probably say, yes, it is a red card.
“But I have also seen other footage from different sources that maybe cast a wee bit of doubt over it so it is a bit of a contentious issue.
“It was a different angle and I see Tony is pulling his leg back and there is very, very little contact with the player.
“I am frustrated at that and frustrated that we started the game well and then had a wee spell where we kind of lost our way a wee bit and then lost the player.
“But what I can say, and say this honestly, if I get what I got from the players in the second half attitude wise, application and bravery in possession, then we will be okay.”
Sondre Solholm proved to be the match-winner after his 22nd-minute header was palmed over the line by recalled goalkeeper Mark Birighitti.