Chelsea are being linked with Barcelona goalkeeper Jasper Cillessen.
The Dutchman could move to Chelsea as a replacement for Real Madrid target Thibaut Courtois, says Mundo Deportivo.
Cillessen, 29, joined the Nou Camp giants in a £12m deal from Ajax in 2016 but has only made two La Liga appearances after failing to displace Marc-Andre ter Stegen.
The Holland international has a release clause of £54m but it is claimed he could be available for as little as £31m.
Chelsea will likely only be able to recoup a similar amount for Courtois, who has entered the final year of his contract.