Toni Rudiger is demanding Chelsea double his current deal for him to stay.

That's according to BILD football chief Christian Falk.

Rudiger is now inside the final 12 months of his current contract, with talks over a new agreement running for several months.

Currently on €5.5m-a-year, Rudiger wants Chelsea to double that to stay, reports Falk.

Among clubs keeping watch on developments are PSG and Real Madrid.