The Celtic chief executive has been discussing the 18-year-old.
Celtic chief executive Peter Lawwell has heaped praise on Kieran Tierney, ranking him alongside Virgil van Dijk, Jason Denayer and more in terms of how he is improving and developing, according to the Glasgow Evening Times.
Indeed, Lawwell is pleased to see the teenager coming through the Celtic ranks and was keen to emphasise the improvement in some of the Bhoys stars over the years - notably Van Dijk, who left for Southampton over the summer.
The Celtic chief said during the club's AGM: "You can see improvement in our players - Virgil van Dijk improved, Jason Denayer improved, Nir Bitton has obviously improved as has Leigh Griffiths and we are now seeing Kieran Tierney coming in."
Tierney has received heavy praise for his start to life in the Celtic first team and has often looked like the only player giving 100 per cent in the Europa League.
If he is to enjoy anywhere near the same success as Southampton's Van Dijk, he'll be on the way to a very good career indeed. But, such is the 18-year-old's talent - and drive - he could well go on to emulate the Dutchman, perhaps going on to achieve more than him by staying at Celtic longer.