Stamford Bridge youngster to continue football education at the Vicente Calderon.
Belgian keeper Thibaut Courtois is to spent 2013/14 on loan at Atletico Madrid.
The La Liga side have confirmed agreement with Chelsea on a deal to bring in the young custodian for a third spell at the Vicente Calderon.
“Thibaut Courtois will return to Atletico Madrid next season after an agreement was reached between our club and Chelsea for him to play on loan for another year,” said a statement on Atletico’s website on Saturday.
Courtois has played 98 times during his previous two seasons with Atletico and was instrumental as they lifted the Copa del Rey this season and the Europa League in 2011/12.
The 21-year-old also won the Zamora award for the goalkeeper that conceded the fewest number of goals in La Liga this season as he was beaten just 29 times in 37 league appearances.
And he is looking forward to a new challenge with Atletico as they also qualified for the Champions League for the first time in four years this season.
“I am very happy because it was what I wanted,” he said.
“I have always said that I wanted to continue at Atletico next season and take part in such an important competition as the Champions League after we qualified for it in such a brilliant way.
“I am only thinking about continuing to enjoy the incredible support that we have and I hope we can continue to bring them a lot of happiness.”