Sinisalo joined Aston Villa at a young age and has enjoyed loan spells at Ayr United, Burton Albion and Exeter City.

The young goalkeeper says that the experience of playing for Exeter City last season was pivotal in making the move to Celtic a reality, and he has revealed that Exeter City manager and former Celt, Gary Caldwell, offered some words of encouragement ahead of his move to Paradise.

Sinisalo said: “Exeter is a brilliant football club and I can’t speak highly enough about it.

“I went in there as a young goalkeeper and played 50 games of men’s football which is really important at such a young age. I learned a lot.

“There were a lot of positives that came from that and the thing is, without Exeter, I probably wouldn’t be sitting here now.

“Without Gary Caldwell, I wouldn’t be sitting here now. He’s only had good things to say about Celtic. I spoke to him and he said I’m joining a wonderful football club, I’ll be looked after and it's special.

'I know it’s a huge football club and it’s really exciting to be part of something so big.'

Sinisalo has also spoken about his excitement at getting the chance to work with Hoops boss, Brendan Rodgers.

“It’s not often you work under great managers such as him,” he said. “I talked to him and the way he spoke about me, how much I felt like he wanted me here, that was what really drew me to come here.

“I can’t speak highly enough of him and I’m really excited to work under him."

WATCH THE FULL INTERVIEW ON CELTIC TV

Viljami Sinisalo: It feels amazing to be here at Celtic