Chelsea have reportedly made Jan Oblak their No 1 goalkeeper target this summer and would be willing to send Kepa Arrizabalaga to Atletico Madrid as part of any potential deal.
Kepa has endured a difficult season with manager Frank Lampard said to be losing faith in the Spaniard.
And The Mirror claim the Blues are now actively looking for a replacement.
The report says Atletico star Oblak has emerged as the first-choice option with a player-plus-cash deal being targeted.
Oblak, 27, has a £120m buy-out clause in the contract he signed last year, which expires in 2023.
The Slovenian has come to be regarded as one of the best keepers in the world over the past few years and it would take a huge offer to prize him away from the Wanda Metropolitano.
The Spanish club would not have considered selling but the effects of the pandemic could see them consider a substantial offer, particularly if it sees them gaining a replacement like Kepa.
Kepa has struggled with the physical nature of Premier League football and has not instilled confidence in Chelsea fans.
The 25-year-old was signed for a huge £71.5m but has not managed to live up to the price tag and, Lampard even dropping him earlier in the campaign to give Willy Caballero a run of games.