The Belgian gloveman is in his third season-long loan with Los Rojiblancos and has been linked with a possible £21million move to the Vicente Calderon.
When quizzed on the possibility of Courtois joining Atleti permanently, Simeone said he was all in favour for a transfer no matter the price.
“Definitely. For me, any price for Courtois would be cheap,” he told Deportes Cuatro TV.
“He is a young guy who has a huge future ahead of him and is on course to be one of the best goalkeepers in the world.
“To secure a goalkeeper of his quality would be a big coup. It will not be easy. It depends what Courtois wants.
"I always talk about football with the club, and the club know what we want, but it isn’t up to us as he is not our player.”
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