Ahead of their League Cup quarter-final with Aberdeen, St Johnstone have appealed against Graham Cummins and Chris Kane’s bookings for diving.
Both players were yellow carded for simulation by referee John Beaton in Saturday’s 1-0 McDiarmid Park win over Hearts.
The cautions came after Saints manager Tommy Wright had suggested that Robbie Neilson’s men had been tumbling too easily this season.
But now the Irishman has decided to appeal referee Beaton’s decisions.
Wright said: “We’ve viewed the footage of the incidents and having lodged our notice of our intention to appeal yesterday, are making a full submission to the SFA today.
“We fully support the game’s authorities as they attempt to clamp down on this aspect of the game but in both these cases we feel that the players have been wrongly cautioned.”
The case is to be heard tomorrow by the SFA’s judicial panel.
Later in the day St Johnstone clash with Aberdeen in the League Cup quarter-finals.
Ahead of the Pittodrie encounter the visitors have been in fine form.
They reached the cup quarter-finals after overcoming Hearts 3-2 in a pulsating second round tie, and having only lost two matches out of six in the Premiership – at home to Celtic and away to Inverness Caley Thistle.
Wright’s charges also played out a 0-0 home draw with the Derek McInnes’ Reds on the opening weekend of the season.
However, they face a right-back crisis.
Former Don Richard Foster is cup-tied after appearing in the group stages for Ross County before moving to Perth.
While Keith Watson is injured and is not expected to resume training until later this week, with Wright well aware of the problem.
He said: “We are a bit light but we have one or two options there.
“We had 16-year-old Cammy Thomson on the bench with another teenager, Aaron Comrie, against Hearts.
“If Ally Gilchrist and Liam Gordon, who were ill last week, had been further down the line one might have gone in at centre-back and Joe Shaughnessy could have moved to right-back.
“But I am reluctant to break up the partnership between Joe and Steven Anderson because they have been playing well.”