The buildup to the summer transfer window has now begun, with rumours and speculation continuing to swirl as Real Madrid eye possible reinforcements.

Florentino Perez oversaw a significant overhaul of his squad during the summer before focusing more on youth in January. As is always the case with Madrid, though, some of the biggest names in football continue to be linked.

Here, Sports Mole rounds up the latest news of possible comings and goings at the Bernabeu.

Thursday morning's headlines:

Real Madrid, Barcelona interested in Arsenal's Matteo Guendouzi?
Spanish giants Real Madrid and Barcelona are reportedly keeping tabs on Matteo Guendouzi amid reports that Arsenal could look to sell the midfielder this summer. Read more.

James Rodriguez hits out at "lies" over Real Madrid future
Real Madrid attacker James Rodriguez insists that the recent criticism of him has been fuelled by "many lies". Read more.

Manchester United 'learn Jadon Sancho asking price'
Manchester United will have to come up with an offer of £117m if they wish to sign Borussia Dortmund's Jadon Sancho this summer, according to a report. Read more.

Frank Lampard addresses Kai Havertz transfer speculation
Chelsea boss Frank Lampard insists that his club have not launched a bid for Bayer Leverkusen's Kai Havertz. Read more.

Chelsea 'begin Kai Havertz talks with Bayer Leverkusen'
Chelsea open talks with Bayer Leverkusen over a potential summer deal for Kai Havertz, according to a report. Read more.

Arsenal confirm extensions for David Luiz, Pablo Mari, Cedric, Dani Ceballos
Arsenal confirm that David Luiz, Pablo Mari, Cedric Soares and Dani Ceballos have all signed contract extensions of varying lengths. Read more.