Chelsea won't get a clear run at Shakhtar Donetsk attacker Douglas Costa.
Douglas Costa has made it clear he'd welcome a move Chelsea, where good friend Willian plays.
However, Ukraine sources say Arsenal, Manchester United, Real Madrid and Barcelona are also monitoring developments.
Douglas Costa feels ready to leave Shakhtar this summer.
The Brazilian has revealed he has also already spoken to Shakhtar, asking the Ukrainian club to show flexibility on the £30million they want for him.
He said: "I put my situation to them and they said they would try to help me. Now, we'll see if it comes to an agreement."