ATLETICO MADRID president Enrique Cerezo is confident of signing Chelsea striker Diego Costa this summer.
Chelsea are desperate to offload Costa this summer after manager Antonio Conte informed the striker he is no longer in his first-team plans.
The Spain international is currently on strike and refusing to return to training with the Premier League champions.
Costa, who joined Chelsea from Atletico Madrid in a £32million deal in 2014, is keen to return to the La Liga club before the window shuts.
And Cerezo is “optimistic” he can bring Costa back to Atletico, but admits the two clubs are struggling to agree on a fee.
Enrique CerezoChelsea are desperate to offload Costa this summer after manager Antonio Conte informe
“[Costa] has a contract with another club, it’s a complicated matter,” Cerezo said.
“We are taking things with ease. As long as Chelsea do not agree to his transfer, Costa will be [a] Chelsea [player].
“Am I pessimistic or optimistic regarding the arrival of Costa? I am always optimistic.”
Costa, 28, has also been linked with a move to Premier League rivals Everton, who are still in the market to replace Romelu Lukaku.
And Toffees manager Ronald Koeman this week refused to rule out a move for fiery striker.
“I don’t know,” Koeman said. “I said always a warm welcome for every good player and he’s a good player.
“We are still looking to bring in a striker. We need more competition up front.”