Gianluca Di Marzio is reporting that the Blues have made an offer to try and sign the defender from Real Madrid as Antonio Conte looks to bolster his rearguard options ahead of next season.
The same report, however, also claims that Manchester City are interested in landing the 26-year-old from the Spanish club this summer.
Chelsea are said to have “formulated” an offer to Real Madrid as they look to confirm their fourth signing of the summer transfer window.
The west London side are on the lookout for their fourth signing of the summer after having completed deals for Willy Caballero, Antonio Rudiger and Tiemoue Bakayoko.
The Blues are thought to be keen to bring in attacking reinforcements this summer as the uncertainty about Diego Costa’s future at the club continues.
Chelsea are preparing for a return to the Champions League next season after having won the Premier League title in Conte’s first campaign in charge at the club.
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