Andy Walker says it's a dangerous game to start judging things on still images in the wake of Derek McInnes claiming for a Celtic red card for Oh.
The South Korean striker was alleged to have caught Liam Donnelly in the face with a high boot during his side's 4-1 win at Rugby Park, with all goals scored inside a devastating first half from Ange Postecoglou's men.
McInnes felt the challenge was similar to one his striker Kyle Vassell made away at Hibs earlier this season, and the forward was red carded on that day.
But Walker told Go Radio that sending off Oh would have been mind-boggling and the trend of using still images when it comes to debate over key points leaving him concerned.
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