Jose Mourinho has confirmed Belgian international keeper Thibaut Courtois will return to Chelsea after three seasons on loan at Atletico Madrid.

“When the World Cup is over, Courtois will come straight back to Stamford Bridge – end of story,” he told Marca.

Courtois spent the last three season at the Vicente Calderón helping them to win the La Liga title, the Europa League, Uefa Super Cup against Chelsea, Copa del Rey and reach last season’s Champions League final.

The Belgian international joined Chelsea from Genk in the summer of 2011 and has not featured for Chelsea in any competitive fixture. He is currently preparing for the World Cup in Brazil, where he is expected to play a key role for the Belgium side. Recently , the 22-year-old revealed he expects to wear the number 1 shirt next season.

“When will I know about my future? It will be after the World Cup I think, then everything will be clear,” he said.

“I spoke to him (Mourinho) in May, before the game against Barcelona. In the week he discussed with me what he thinks about me and about everything. That is it.

“Do I want to number one wherever I play next season? Yes, I think with my age and the performances I had I want to play. To be on the bench is not the nicest thing.”

He added: “I had four incredible seasons already, one with my team in Belgium and three with Atletico so I can be very happy.

“Last year to be champion in Spain and play in the final of the Champions League was great.

“To be here now for a World Cup is amazing. Hopefully we can achieve some nice things here. For us this is the first time for us back here (in the World Cup) after 12 years.

“We have to stay with our feet on the ground and try and pass the group stage. If we are in the next round it is already good and everything that comes after – quarter-final or more – is a success.

“If we reach our goal it is to pass the group and if we lose to a better team then it is like that. But if we achieve our goal success would be a quarter-final or more.”

This surely casts Petr Cech future at Stamford Bridge in doubt. Cech has held the No 1 shirt at Chelsea for 10 years and holds the club record for clean sheets, keeping more than 200 since he arrived from Rennes in 2004. Chelsea have already released senior players Frank Lampard and Ashley Cole and are looking to rebuild their squad after failing to win a single trophy last season. Chelsea have signed Cesc Fabregas from Barcelona and Diego Costa from Atletico Madrid.