Liverpool complete signing of Marko Grujic

The 19-year-old signed a four year contract that will keep him at Anfield until the summer of 2020.

He has however been loaned straight back to Red Star to continue his development and will  join the Liverpool squad for pre-season tour in July.

"We're very pleased because Marko is a big talent and we've seen him a lot of times," Klopp told the club's official website.

"When I came here, our scouts showed me some footage of a very skilled player from Red Star Belgrade. We watched it, we spoke to him, we met each other – he's a good boy, a young boy but plays an important role at the moment at Red Star, who are the best team in Serbia."

Speaking after he was unveiled, Grujic said: "I'm very excited and so proud to be here and a member of Liverpool Football Club. I can't wait to get started, play at Anfield and train at Melwood.

"I was thinking about my progress in my next period and decided it was good for me to come here and try to be the best I can.

"I want to play in front of one of the loudest set of fans in Europe at Anfield.

"I also like the atmospheres at other stadiums, the crowds are very good. I like to play under pressure and that's why I've come here – because it brings out the best in me."