Paris Saint-Germain are reportedly in negotiations with the agent of Chelsea defender Antonio Rudiger.
The German has less than seven months left on his contract, and he could leave on a free transfer next summer.
Real Madrid are touted as favourites to sign him, but Bild claims that Paris Saint-Germain are also interested.
The French heavyweights have already held a meeting with Sahr Senesie, who is the agent and brother of Rudiger.
The centre-back has been almost ever-present for the Blues in defence since the appointment of manager Thomas Tuchel.
Tuchel is keen to keep hold of Rudiger beyond next summer, but the German is eyeing a significant hike on his wages.
Rudiger wants a staggering package of around £400,000-a-week to stay. The Blues are unlikely to come close to that figure.
The hierarchy are currently reluctant to pay more than £150,000-a-week. Rudiger reportedly feels disrespected by the offer.
Aside from Paris Saint-Germain and Real Madrid, Juventus and Bayern Munich have also been linked with the 28-year-old.