The 18-year-old has been in sensational form for the Hoops this season.
Kieran Tierney has offered an explanation as to how he went from academy prospect to key man in Celtic's side, but surprisingly admitted that he still thinks of himself as a fringe player in the Hoops' squad despite his stunning emergence into the first-team, the Evening Times reports.
The left-back began the campaign with just two previous Scottish Premiership appearances under his belt, but soon forced his way into Ronny Deila's plans before using his opportunity to move ahead of Emilio Izaguirre in the side.
And despite Deila seemingly confirming that he views the youngster as his first choice by selecting him for the Scottish Cup semi-final, Tierney insisted that he does not feel that he is any further up the pecking order than at the start of the season.
"I am obviously not the biggest and it is always at the back of your mind that someone might decide that you are too small, too slight to make it," he told the Evening Times. "For me, I always tried to over-compensate with working hard on the technical side of my game.
"Obviously you can't do anything about the height you are but it meant that I always listened and worked on my awareness and technical aspects of the game. I don't think I ever took it for granted that I would make it all the way into the first-team - I still think that I would see myself as being on the outskirts of it.
"I am still like that. I just want to learn and get better. It has been an amazing season for me but I do think there is loads that I can still improve on."
Given Tierney's meteoric rise - which has also seen him handed his debut for Scotland - he would perhaps be forgiven for getting slightly carried away by what he has achieved this season.
However, the fact that he is still concentrating on improving further, and still feels that he has a point to prove shows that he is the kind of player that will help the Bhoys in their quest to maintain their dominance in the top flight.