Bobby Madden has explained the reason Nico Kuhn was not sent off for Celtic after his crowd celebration in Dingwall.
The winger netted the crucial winner three minutes from time in the Highlands to keep up Celtic's flawless start to the Scottish Premiership campaign.
Kuhn raced towards the travelling Celtic support after his finish prompting fears over a second yellow card.
The German had already been booked in the 50th minute but avoided punishment for his celebrations.
Sky Sports pundit Kris Boyd had been left confused by the situation as he suggested a second caution and resulting red should have been shown by Kevin Clancy.
He said: "The rules must have changed because I thought he got booked. The rules must have changed..."
Asked whether he was concerned over a second yellow in a post-match interview, Kuhn said: "I didn't even know that I got a booking, I don't even know for what.
"I don't think I did something..."
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Now, former top Scottish referee Bobby Madden has explained a second yellow is not mandatory for celebrating with supporters - and hasn't been for more than a decade.
The ex-whistler provided the information on his Instagram account, stating that the only consideration for a yellow is whether the celebration caused a safety or security risk.
He posted: "Today. Today. 2017. I could share a clip of a player from every team celebrating in that manner and not being cautioned. Scottish football, the home of whataboutery. "Nobody has ever wanted cautions for this. It was removed as mandatory caution over a decade ago. Referees discretion and common sense were asked for. The only consideration being if the celebration caused a safety or security risk. "The guidance was that if you celebrated with your own fans, didn’t enter the crowd and there wasn’t a multiple pitch incursions(this is when police would expect action) as a consequence, then no caution would be issued. "As ever, it would probably be better being communicated to the wider football audience that way."
