Celtic boss Neil Lennon has confirmed the club will contend the red card given to Victor Wanyama on Sunday.
The Kenyan midfielder was sent off by referee Bobby Madden ten minutes into the second half in the eventual 1-1 draw with St Mirren in Paisley for a challenge on Paul McGowan.
The decision, along with a number of others on the day, perplexed Lennon who made it clear he would appeal the sanction that comes with a straight red.
"You can presume right, yes,” he said of the Wanyama appeal.
He added after McGowan’s 81st minute penalty cancelled out Kris Commons’ sixth minute opener: "That was the most appalling refereeing performance I have seen for a long, long time.
"I mean, you can't get so many big decisions so wrong, it is incredible.
"For me St Mirren should have had a penalty, it is a clear handball.
"You don't get many more as clean-cut as that so we dodged a bullet there.
"Then I see (Beram) Kayal getting wrestled into the advertising hoardings right in front of the linesman and he doesn't give a free-kick and two seconds later, I've got a man sent-off for nothing and the penalty that St Mirren did get was outside the box and there is no contact.
"So I am delighted that we got a point out of it but there is no doubt that the referee's decisions ruined what could have been potentially a good game.
"The sending off is ridiculous and it changed the game."