Cesc Fabregas believes the Diego Costa situation at Chelsea was wrong and is disappointed to see him return to Atletico Madrid.
The striker was deemed surplus to requirement by Conte and has been sold to Atletico for a fee of £57 million.
However, Costa will be sidelined for a few months, as he can only link up with his new club come January.
Fabregas believes the Brazil born striker will be sorely missed by Chelsea and is not glad to see him go.
The Blues midfielder told Marca, ahead of a Champions League clash with Atletico on Wednesday: “It’s a shame for him more than anyone.
“Diego knew that by signing for Atletico he could not play for a few months.
“It has been a difficult situation for him, for Chelsea. It has been wrong.
Pressed on whether he had hoped to see Costa remain in west London, Fabregas added: “Clearly. Diego will always [be a friend] and never a rival.
“In recent years, like a pure No.9, there has been no one better than him.
“I understood him myself perfectly. He knew my football, he read my passes and, most importantly, he got them.
“He gives a lot to the dressing room. He is not only the Diego that is seen on the field. He is a character that greatly encourages the group.”