Chelsea manager Jose Mourinho has confirmed he has his sights set on Diego Costa and is confident that a deal will be struck to bring the Atletico Madrid striker to Stamford Bridge.

Chelsea have long been linked with a big-money move for the 25-year-old, who netted 36 goals in all competitions last season to help Atletico win the Primera Division title and reach the Champions League final.

No switch was confirmed before the World Cup, where Brazillian-born Costa is part of the Spain squad, but Mourinho is certain Chelsea will end up getting their man.

Mourinho told Spanish newspaper Marca: "Costa is a player who I want to have in my team. I've asked my club for him and I have total confidence that we're going to achieve it and he will end up signing for Chelsea."

Chelsea have already started their summer rebuilding after failing to win a trophy last season, with the club this week announ cing the signing of Cesc Fabregas from Barcelona as well as completing the sale of David Luiz to Paris St Germain.

Several other first-team players are also set to leave the west London outfit this summer, but Mourinho insists midfielder Ramires will not be one of them.

Reports in Spain suggest Real Madrid's former Chelsea boss Carlo Ancelotti is keen on taking the Brazil international - who the Italian signed from Benfica in 2010 when he was in charge at Stamford Bridge - to the Bernabeu this summer.

However, Mourinho is adamant the 27-year-old is not going anywhere, saying: "Ramires is staying at Chelsea, he's not for sale.

"I have a great relationship with important people at Real Madrid and they know that Ramires is going to stay at Chelsea."

The Portuguese, who left Madrid last summer to return to Chelsea, also rubbished speculation he was looking to raid the European champions for any of their players.

Mourinho added: "They (Real Madrid) know that Ramires isn't going, but they also know that I'm not interested in any Real Madrid player. (Raphael) Varane and (Sami) Khedira? I repeat that I'm not interested in any Madrid player, full stop."

Mourinho also confirmed to the paper that Belgium goalkeeper Thibaut Courtois would be returning to Chelsea after the World Cup having spent the last three seasons on loan at Atletico.

Fabregas revealed on Sunday that he chose to join Chelsea after being told by Arsenal manager Arsene Wenger th at the Gunners had sufficient cover for his position.

A clause in Fabregas' contract gave Arsenal first option to re-sign their former captain from Barca, but Wenger decided against bringing the 27-year-old back to the Emirates.

The reason for that, according to Fabregas, is that Wenger felt the Gunners were well stocked for midfield playmakers, with Arsenal having splashed out a club-record fee on Germany star Mesut Ozil last summer.

After speaking with Wenger, Fabregas said he mulled over several other offers before being swayed by Mourinho to move to Stamford Bridge for a fee believed to be in the region of £30million.

Speaking about his move at a Spain World Cup press conference in Curitiba, Fabregas said: "There came a moment when I decided my time at Barcelona was over and I only tried to look for the best option for me.

"Arsenal were the first option due to a clause in the contract. We spoke with Wenger and he said that with Ozil they had this position well covered.

"From there, I had other very good offers and I looked for the best in the Premier League, which is where I wanted to go.

"I spoke with Jose Mourinho and he won me over, he convinced me, told me what I wanted to hear and from there everything was very quick.

"I hope that this new phase of my career goes phenomenally well."