Chelsea are planning a swap bid for Atletico Madrid goalkeeper Jan Oblak.

The Mirror says Chelsea have made Oblak their No.1 goalkeeper target this summer.

Blues boss Frank Lampard has seen current first-choice Kepa Arrizabalaga struggle badly this season with the club now looking at potential replacements.

Atletico Madrid keeper Oblak, 27, has a £120m buy-out clause in the contract he signed last year with the deal due to expire in 2023.

But Chelsea keeper Kepa could be used in a player-plus-cash deal for Oblak to try and offset the huge fee which would be a world record for a goalkeeper.

Chelsea would value Oblak at less than £100m and would hope to put Kepa into the package to come up with a good value deal.