Romelu Lukaku says he has "already made a decision" about his future beyond this summer.

Chelsea has been considering bringing Lukaku back from Everton.

There is no buyback clause in the £28 million deal that took Lukaku from Chelsea to Everton in the summer of 2014, meaning that owner Roman Abramovich could be forced to commit up to £65 million to secure his return.

Manchester United, Paris Saint-Germain, Juventus and Bayern Munich are also reported to be interested in signing Lukaku this summer.

"I keep it for me," Lukaku said when asked about his future. "A lot of clubs are interested, some of which are already very concrete for five years. In my head, I have already made a decision, so we'll see."

Asked whether he is considering a return to Chelsea, Lukaku replied: "We'll see. It's true that the English competition suits me perfectly, but there are plenty of other beautiful clubs."