Chelsea have made contact with Bayern Munich over a transfer deal for Jerome Boateng.
The news that the Blues are chasing the Germany international has been confirmed by Gianluca di Marzio on Sky Sport Italy on Wednesday night.
It seems he became a target after the Londoners failed to reach an agreement for Virgil Van Dijk and Leonardo Bonucci.
Manager Antonio Conte is yet to sign a new defender but he is desperate to add at least two quality defenders before the start of pre-season.
The 28-year-old has suffered a number of injuries in recent seasons with the German giants open to sell him for £35million.
Midfielder Tiemoue Bakayoko and Juventus wing back Alex Sandro are also expected to move to Stamford Bridge.
Chelsea will be involved in next season's Champions League and Conte wants to have enough depth in his squad to compete in England and Europe.