New Chelsea forward Diego Costa has said he will never be disrespectful to the club he left behind in Atletico Madrid.
Costa joined Chelsea for a fee in excess of £30 million on the back of his most successful season to date, where he scored a total of 36 goals in 51 games in a season that saw Atletico win their first La Liga title since 1996, along with reaching the Champions League final.
Some fans were angered that he may have implied the La Liga champions weren't a big club after it was said he left Atletico 'because it was easy and to play for a big club like Chelsea.'
Costa is quoted by Spanish newspaper Marca, denying any suggestion that his old club was small, saying: "I'd never disrespect Atlético by saying they weren't big. I fought hard to make it at Atlético. But I'm leaving a big club, Atlético, for another big club, Chelsea. I owe everything to Atlético and I will never forget the fans there."
There were also comments from Costa saying that he owes Diego Simeone a great deal after he masterminded last season's stunning campaign, and that he hasn't put Mourinho above Simeone, given that he has only just linked up the Blues boss at Stamford Bridge.
He added: "The reason I am here at Chelsea is because of Atlético and 'El Cholo', who have both taught me so much. People have twisted my words. I said that Mourinho is considered by many to be one of the best coaches in the world as so many of his players say so.
"But I have just started working with him and whilst I am excited, I owe so much to Atlético and Simeone. For me they have been the best. Let's hope it will be as good here with Mou, but it's still early days yet for me to say that."