Dial 'D' for Dingwall.

Celtic return to the Highlands this Saturday to face Ross County on Scottish Premiership business.

There is nothing novel in that, per se.

However, Dingwall will forever be remembered as the scene of the catalyst that sparked Celtic's title charge last season under Ange Postecoglou.

There was something monumental - almost biblical - about Anthony Ralston's 97th-minute winner for the 10-man Hoops that evening against the Staggies.

Celtic defied the odds and the ticking clock to conjure up all three points from a seemingly desperate situation.

Liel Abada's opener had been cancelled out by Jack Baldwin and then Swedish defender Carl Starfelt saw red will 11 minutes to go.

Celtic were staring down the barrel of a Scottish Premiership title gun.

Then up popped Ralston from nowhere as he rose majestically to head home Tom Rogic's exquisite cross in the seventh minute of added time to give the Hoops a priceless three points.

The victory kept them snapping at the heels of Rangers and the gap at the top of the table was reduced to just four points when it threatened to stretch to six.

It also set the Hoops up nicely for the League Cup final at Hampden against Hibs days later, when an inspired Kyogo Furuhashi double saw Celtic lift the first trophy of the season.

If one goal can change the destiny of a season then this was it.

It was the turning point of the campaign when the Celtic manager, players and supporters sensed that the league title was there to be won.

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It gave those of a green and white persuasion cherished hope and new-found belief that they could land the big prize even during a rebuilding season.

If ever a moment typified the 'we never stop' attitude and spirit of the new Celtic under Postecoglou it was Ralston's goal. The perfect illustration.

Ralston himself spoke of how he fulfilled a boyhood dream that night.

"It was a bit mental, to say the least," he said. "That moment is something I might never do again, but the main thing was that we got the three points which is always difficult when you go there.

"On a personal note, it was a dream to score a late winner and you saw how the fans reacted, so I have great memories. It’s something growing up that you’ve watched and you think it could be you someday but you never expect it to happen.

"Tom hung up a great cross and I’ve found myself in a position to put it in - it was carnage after that. It’s a great memory that will live with me forever."

Saturday will see the first match of a Hoops double-header against Malky Mackay's men this month as the two will also clash at the same venue in the League Cup last 16 when the holders begin their defence of the silverware on August 31.

Last season's Scottish Premiership league success under Postecoglou will always be remembered as one of the best and sweetest titles that Celtic have ever won in their illustrious history.

They will talk about season 2021-22 for years to come and how Postecoglou guided his charges to one of the most unlikely league wins in recent memory.

Simply put, the Celtic supporters who were lucky enough to have witnessed those scenes on that fateful December night in the Highlands when Ralston rose to conquer will - to their dying day - be able to proudly claim 'I was there'.

This piece is an extract from today’s Celtic Digest newsletter, which is emailed out at 4pm every weekday with a round-up of the day's top stories and exclusive analysis from The Celtic Way team. To receive our full, free newsletter including this analysis straight to your email inbox, click here and tick the box for The Celtic Digest