Chelsea may offer fellow keeper Kepa Arrizabalaga to Atletico in part-exchange as they are reluctant to meet the Spanish club's £110m asking price for Oblak.

Chelsea are keen on signing Ajax and Cameroon goalkeeper Andre Onana, 24, as a replacement for Kepa Arrizabalaga. The 25-year-old Spaniard has been linked with a move to Valencia this summer on a two-year loan deal.

Chelsea are still keen to sign AC Milan goalkeeper Gianluigi Donnarumma and could include current No 1 Kepa Arrizabalaga in a swap deal.

Kepa will replace Belgium's Thibaut Courtois, who is confident his refusal to return to Chelsea to train will be rewarded with a move to Real Madrid. The Spanish side are prepared to allow Croatia midfielder Mateo Kovacic, 24, to move to Stamford Bridge on loan as part of the deal

Athletic Bilbao goalkeeper Kepa, who is close to joining Chelsea for £71.5m, almost signed for Real Madrid in January for just £17.9m. The 23-year-old Spaniard will become the world's most expensive keeper when he moves to Stamford Bridge