Celtic manager Ronny Deila is convinced by the potential of Kieran Tierney.

The teen has been linked with Southampton.

Asked if he could one day have his pick of destinations, the Celtic manager replied: "Of course he can. (Lionel) Messi can come from Scotland. But there is maybe going to be one (of his ilk) in a hundred years.

"Kenny Dalglish had a big, big career before. It's true that was 30 years ago, but Zlatan (Ibrahimovic) is coming from Sweden. So it's possible.

"KT can go all the way. He can play at the highest level if he continues to develop. He needs to improve all the time and to do that he has to play.

"He has been playing here now consistently for seven months. He is in a very good situation now, playing for his national team and in Europe for a big club. What can be better?"