Filipe Luis' agent has revealed Chelsea are interesting in securing the services of the Brazilian left-back – but warns that Atletico Madrid are not willing to negotiate a deal below his €24m release clause.

La Liga champions signed the 28-year-old from Deportivo La Coruna in summer 2010 after paying £10m to secure his services.

The Brazilian star has since become a key player for Diego Simeone - playing a crucial role this season in Atletico Madrid's La Liga title success as well as their remarkable run to the Champions League final.

Even though he has surprisingly being omitted for the World Cup, Filipe is considered one of the best left-backs around Europe and has caught the eye of a number of big clubs – including Chelsea and Manchester United.

Jose Mourinho is desperately looking for a left-back to replace Ashley Cole - having used Cesar Azpilicueta out of position for most of the last campaign.

Luis' agent has now confirmed the Blues interest in securing his services in an interview with AS: "Chelsea? The interest is there."

"But Atletico don't want to sell. They want to keep every player they can for next season. Then, we'll see what's happening with different players, but Atletico don't have any intention to sell anyone."

Nevertheless, Spanish reports claim that Chelsea are considering to meet his €24m (£19.5m) release clause – leaving Atletico with no choice but to secure his services should the player also accept the move to West London.

Chelsea have also been linked with Southampton youngster Luke Shaw but with his club demanding at least £30m Mourinho has opted to sign the Atletico Madrid star instead.