Chelsea are supposedly still hopeful of agreeing new deals with Cesar Azpilicueta, Andreas Christensen and Antonio Rudiger.
The Blues could be set for a major defensive overhaul in the summer, with all three players due to become free agents at the end of the 2021-22 season.
Barcelona are reportedly hopeful of snapping up Azpilicueta and Christensen on free transfers, while the likes of Paris Saint-Germain, Manchester United, Bayern Munich and Real Madrid continue to be linked with Rudiger.
However, The Athletic reports that Chelsea remain optimistic about their chances of keeping all three players at the club, with none of them yet to agree a pre-contract with another club.
Rudiger has supposedly rejected the Blues' latest renewal offer of £200k per week, with the Germany international thought to be after a weekly wage of £225k per week at Stamford Bridge.
Meanwhile, Chelsea must reportedly part ways with N'Golo Kante if they want to sign Declan Rice from West Ham United this summer.