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.

Sunday morning's headlines:

Chelsea 'suffer blow in David Alaba pursuit'
Bayern Munich will reportedly step up their attempts to tie Chelsea-linked David Alaba to a new contract at the Allianz Arena. Read more.

Real Madrid's Dani Ceballos opens door to Real Betis return
Real Madrid midfielder Dani Ceballos hints at a possible return to Real Betis, with the Spaniard set to head back to the Spanish capital from his loan deal at Arsenal. Read more.

Erling Braut Haaland dismisses Manchester United, Real Madrid rumours
Forward Erling Braut Haaland reiterates that he has no intention of leaving Borussia Dortmund during the next transfer window. Read more.

Napoli defender Kalidou Koulibaly to join Manchester City for £72m?
Manchester City are reportedly in pole position to sign Napoli defender Kalidou Koulibaly in a £72m deal during the next transfer window. Read more.

Inter Milan 'close to signing Real Madrid defender Achraf Hakimi'
Inter Milan are reportedly close to securing the signing of Real Madrid defender Achraf Hakimi for €40m (£36.37m). Read more.

Chelsea 'approach Bayern Munich to discuss David Alaba'
Chelsea make contact with Bayern Munich to discuss a potential move for David Alaba, according to a report. Read more.

Kia Havertz 'will only join Champions League club'
Bayer Leverkusen attacker Kai Havertz is only prepared to join a Champions League club this summer, according to a report. Read more.

Arsenal's Matteo Guendouzi 'in contact with four clubs'
Arsenal midfielder Matteo Guendouzi is in talks with Barcelona, Paris Saint-Germain, Inter Milan and Atletico Madrid ahead of a potential summer move, according to a report. Read more.