Chelsea have identified Joe Hart as a potential replacement for Real Madrid target Thibaut Courtois, according to reports.
The Belgian's Blues contract expires at the end of next season and new terms are yet to be agreed between player and club.
Los Blancos are believed to be interested in Courtois, with reports suggesting that the 25-year-old may be running his contract down to force a move to Spain.
According to The Sun, Chelsea are preparing for that scenario and want England goalkeeper Hart to come in as Courtois's replacement once his loan at West Ham United is over.
Hart remains on Manchester City's books but has been exiled by Pep Guardiola and is currently on loan at West Ham United having spent the 2016-17 campaign at Italian club Torino.
