Chelsea are ready to overhaul their title winning squad, with a major clearout planned.
The Telegraph says Diego Costa's agents are set for Chelsea talks with his future undecided.
Costa's situation is the most delicate facing the club this summer, but as many as nine of the first-team squad who won the Premier League title have doubts over their futures.
John Terry and Asmir Begovic, who will join Bournemouth, are definitely on their way out, while there is uncertainty over Nemanja Matic, Cesc Fàbregas, Michy Batshuayi, Nathan Aké, Kurt Zouma, Ruben Loftus-Cheek, Kenedy and Ola Aina.