Scottish champions Celtic have no doubt suffered notable missed opportunities over the years with regards to potential transfers, with one of the Old Firm outfit's more high-profile mistakes having seen them pass up the chance to sign current Liverpool star, Andy Robertson.

The relentless full-back was reportedly recommended to the Hoops by Virgil van Dijk back in 2013, with the towering Dutchman having recently revealed that he had been impressed by what he'd seen of the Scotsman during the latter man's time at Dundee United.

Speaking to pundit Gary Neville on The Overlap Youtube Channel last week, Van Dijk revealed that his recommendation to sign the promising left-back had fallen on deaf ears at Parkhead, with the 31-year-old stating:

"Robbo is a fantastic player, a pleasure to play with, passionate. He is one of the leaders in my opinion. He is the captain of Scotland and I played against him playing at Celtic when he was at Dundee United.

“Funnily enough I was saying to our scouts that we should get him at Celtic. But he went on to Hull, but just in general playing with him has been incredible"

The Glasgow side had also previously allowed the current Scotland skipper to depart from the youth set-up a few years earlier, with the player himself revealing that he had been released at U15 level on a free for being "too small".

As it has proved, the Bhoys are now paying the price for their decision to not only let the 59-cap gem leave, but to also fail to atone for that error by signing Robertson just a few years later, with the £100k-per-week man having since gone on to thrive at Anfield, following a prior spell at Hull City.

Having joined the Merseysiders back in the summer of 2017 for a reported fee of just £8m, the 28-year-old has since gone on to become the "best left-back in world football", according to pundit Kevin Phillips.

The all-action star is something of a "Duracell bunny" such is his boundless energy down the left flank, according to journalist Leanne Prescott, having managed to couple that work rate with a lethal end product, having registered a remarkable haul of 51 Premier League assists in his career thus far.

While those at Celtic Park did benefit from the presence of former academy graduate Kieran Tierney in the recent past - with the current Arsenal man providing 45 goal contributions during his time with the Hoops - the 25-year-old is arguably not at the same level of his international colleague, having notably laid on just seven league assists since his £25m move to the Emirates back in 2019.

It is also telling that at international level it is the £35m-rated Robertson who has been afforded the more attacking left wing-back role in Steve Clarke's side in recent times, with Tierney having had to slot in as part of a back three as a result.

While the Reds star has outlined his ambition to one day line up for Celtic - calling it a "dream" to play for his boyhood club - it remains to be seen if that will ever come to fruition, with those at Paradise still left to rue their previous mistakes.