Chelsea want to bring RB Leipzig goalkeeper Peter Gulacsi back to England this summer.
The former Liverpool keeper has established himself as one of the best shot-stoppers in the Bundesliga.
ESPN says Gulacsi has been watched by Chelsea and Atletico Madrid this season and have him under consideration in the event they lose their No1s.
Chelsea see the Hungary international as a replacement for Thibaut Courtois, while Atletico fancy him as Jan Oblak's successor.
A bonus for Chelsea is thanks to his Liverpool background, Gulacsi would be regarded as a home-grown player by the Premier League.