Chelsea still have the option to re-sign centre-back Nathan Ake from Bournemouth.
The Blues included a buy-back cause in Ake's contract when he joined the Cherries in 2017.
And The Sun says the £40m clause remains active.
The news will come as a blow to Tottenham Hotspur and Arsenal, with hoping to pursue Ake this summer.
They will now have to rely on Chelsea passing on the option to sign the talented 24-year-old.