Unsettled Chelsea striker Diego Costa has released an official statement regarding his future at Stamford Bridge.Costa who is currently in his native Brazil has threatened to remain there rather than return to London, and then leave on a free transfer, according to Sky Sports.Deportivo offer Costa escape route from Conte & ChelseaChelsea hand Costa conditions for first team football5 reasons why Chelsea will not retain their EPL titleCosta in a statement said: "If the manager doesn't want me, the team I want to go to is Atletico Madrid. I have rejected other offers. They want to sell me to China or other teams. "If I'm off, I'm going to the club I want to go to not the club that's paying the most. I want the deal with Atletico resolved this month." said the Spain internationalSuch a scenario is not acceptable to Chelsea, though, who want the player to return to training and put himself in contention for selection.Chelsea boss Antonio Conte reportedly texted Costa in June informing the striker he was not part of his future plans, and the striker has since remained in his native Brazil.The 28-year-old's lawyer, Ricardo Cardoso, said last week his client intended to hand in a formal transfer request and is considering legal action against Chelsea in order to force through a move to former club Atletico.