Celtic star Kieran Tierney insists he'll always be grateful to Ronny Deila after stunning season for youngster

The 18-year-old has now made his international debut after impressing at Parkhead.

Kieran Tierney has insisted that he will always be grateful to Celtic boss Ronny Deila for the continued faith the Norwegian has shown in the 18-year-old since he made his debut for the club, the Evening Times reports.

The left-back appeared twice at the back-end of last season but this campaign has seen the youngster become a regular in the first-team, making 25 appearances in all competitions. 

And the way that he has stepped up to being a mainstay in the Hoops team has not gone unnoticed by Scotland boss Gordon Strachan who handed him his international debut during the country's recent friendly with Denmark. 

And after rising to the challenge of making the step-up into the international arena with the same ease with which he moved into the Celtic team, Tierney claimed that it was down to Deila that he has achieved so much in such a short space of time.

"The manager has been amazing with me, right from the start," he told the Evening Times. "He brought me in and gave me my chance but he has always in general been very positive and good with me.

"I am a hard worker and I enjoy training and trying to get better. I know it is something that the manager likes and I think it is the same with Scotland - I think if you are prepares to get your head down and work hard then you are in line with getting a chance.

"But so far Ronny Deila is concerned, I will always be grateful to him because if it wasn't for him and the belief that he had in me then I don't know that I would be in this position."

With the defender proving to be one of the most exciting prospects in the Scottish Premiership champions' squad, his endorsement of Deila could prove to be a key moment for the under-pressure Bhoys boss. 

The likes of Neil Lennon, David Moyes and Malky Mackay have all been linked with taking over from Deila following a mixed campaign (via Evening Times) - while the team could still clinch the double, the lack of success in Europe and the fact that the title race has been much closer than many would have imagined has left some questioning whether the team are making any progress.

However, the pressure may force Deila to avoid throwing any other youngsters into the equation in future through fear of what it may mean for the team's immediate form and subsequently, his chances of being manager beyond this season. 

But with Tierney suggesting that Deila is to thank for his progress, the club's hierarchy may reflect much more positively on what the manager has achieved and avoid wielding the axe. 

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