The Scottish Football Association compliance officer will assess critical comments made by Celtic striker Leigh Griffiths about referee Craig Thomson.
Sunday newspapers quote Griffiths complaining that Thomson did not send off Aberdeen defender Andrew Considine.
Thomson booked Considine for the foul on Griffiths in Saturday's league game.
"If it's at the other end, I'm positive - I'd put my mortgage on it - that Craig sends one of our players off," Griffiths is quoted as saying.
"The Aberdeen players would have surrounded him and you can guarantee he sends him off.
"I was going to score, there was no doubt about it.
"I was three or four yards away from goal, so he's got to be sent off."
Griffiths scored from the resultant penalty but Aberdeen fought back to win 2-1 and in doing so moved to the top of the Scottish Premiership.
Compliance officer Tony McGlennan is likely to consider whether the comments imply incompetence or bias by the official.