Chelsea have reached an agreement to sign defender Axel Disasi from AS Monaco for 45m euros (£38.57m).
France international Disasi, 25, will give Chelsea another right-sided centre-back option following the injury to Wesley Fofana.
Fofana has been ruled out for several months after undergoing anterior cruciate ligament surgery.
Benoit Badiashile is also currently injured and will not be fit until after the Premier League season starts.
Chelsea have Thiago Silva, Trevoh Chalobah and Levi Colwill, who has interest from Brighton, as their options in the centre of defence as things stand.
Disasi has made 118 appearances for Monaco since joining the Ligue 1 club from Stade de Reims in August 2020.