Leeds United are in advanced talks with Dinamo Zagreb to sign defender Josko Gvardiol, Football Insider has learned.

The Yorkshire giants are confident of making the 18-year-old their second defender signing this summer following the £13million arrival last week of Robin Koch.

A recruitment source has told Football Insider that Marcelo Bielsa has given the green light for the capture of Gvardiol, who is predominantly a centre-back but can also slot in at left-back.

United have been in negotiations with Dinamo since last month and all parties are confident an agreement can be reached.

It is now likely the deal for the Croatia Under-21 international can be finalised by next week.

The transfer could be worth up to £18million including performance-related add-ons for a teenager who has attracted interest from some of Europe’s top clubs.

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Leeds want to bolster their defence line after winning the Championship title with one of the smallest squads in the league.

They failed to sign 2019-20 loan star Ben White from Brighton permanently but are now close to a second new defensive arrival to complement first choices Liam Cooper, Luke Ayling and Stuart Dallas.

Once Leeds are confident they have an agreement in place for Gvardiol, Pascal Struijk is then set for a season-long loan.

One possibility is a cross-Yorkshire move Huddersfield Town, where ex-Leeds coach Carlos Corberan is on the verge of completing the temporary signing of Robbie Gotts.

Football Insider broke the news on Wednesday that the Championship outfit – now managed by Corberan – have agreed the terms of a loan deal for midfielder Gotts.

In other news, Leeds United have set their sights on alternative new signing after forward pursuit collapses.