Sky Sports' Spanish football expert Terry Gibson says that Chelsea have made a mess of Diego Costa's situation, saying that it is now inevitable that the striker will return to former club Atletico Madrid.
The 54-year-old believes that the way in which the Blues have handled the striker has only led to a decrease in his value.
The former Manchester United striker told Sky Sports' 'La Liga Weekly' podcast that "Chelsea have handled this badly. It has really depreciated his value in a market this summer where they could have got an absolute fortune for Diego Costa.
"The way it was done in terms of the alleged text message between Antonio Conte and Costa devalues the player's worth, and that was devalued even more by the fact he only wants to go to one club.
"And it pretty much looks like every other club in Europe have not bothered to make an offer to sign him, despite him being a top-quality striker, because everyone assumes he is going to be going to Atletico Madrid.
"I can't believe there is not a deal to be done now, they have a transfer ban until January, but it suits Atletico Madrid and Chelsea and it suits Diego Costa.
"But it is not great for Conte to have Costa knocking around in Brazil doing pretty much what he likes, and Chelsea still paying his wages I presume, unless they are fining him on a daily basis for not turning up to training."
Gibson believes that the striker would be a great signing of Diego Simeone's side.
"He is the perfect centre forward for Atletico Madrid," he explained. "He would make such a difference for Atletico if the transfer does go through and he can start playing in January.
"It seems inevitable that he is going to be playing for Atletico Madrid from January onwards... a hungry Diego Costa in January could cause havoc in La Liga."
Will Diego Costa return to his former stomping ground this summer? Terry Gibson certainly believes so.