McDonald may face punishment for his late challenge
Celtic striker Scott McDonald's challenge on Dundee United's Lee Wilkie has been referred to the Scottish Football Association's review panel.
McDonald caught the Tannadice skipper high on the shin with his studs after losing control of the ball.
Referee Stuart Dougal did not get a proper view of the incident during Celtic's 2-1 victory so he has handed the issue on for video analysis.
The review panel will refer the matter to the SFA's disciplinary committee.
McDonald is the second Celtic player to be referred this week, with Glenn Loovens' challenge on Rangers midfielder Maurice Edu also being investigated.
An SFA spokesman said: "The same review panel will consider both incidents and we hope to get it convened by the end of this week."
However, both players will be free to play in the title run-in as the disciplinary committee will not convene until the season is over, if they decide either player has a case to answer.
McDonald's clash with Wilkie sparked a major row between Dougal and United manager Craig Levein, who criticised the referee's response after being urged to allow treatment to the defender.
Levein's public criticism of the match official could land him in hot water with the SFA.
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