Chelsea striker Diego Costa is unsure if he and Romelu Lukaku can play in the same team.
Everton centre-forward Lukaku is wanted by Chelsea boss Antonio Conte for next season - independent of what happens with Costa.
After Saturday's FA Cup final defeat, the Spain international was asked about staying with Chelsea and playing alongside Lukaku.
Costa replied: "Whether I can play with Lukaku? I do not know.
"He is a top player and had a top season."
He also remarked: "I'm good at Chelsea, I've got a contract for another two years. But if Chelsea wants to sell me, I would like to go to one club: Atlético."