Benfica are demanding top price for midfielder Nemanja Matic.
The Daily Star says Benfica are demanding Chelsea pay a staggering £38m for Matic - the man the Blues let them have as a makeweight two years ago.
Boss Jose Mourinho has convinced owner Roman Abramovich that the Serbian playmaker is key to his plans.
And, like Mourinho, Matic, 20, will be making a return to Stamford Bridge, having first signed for the club from Slovak side Kosice four years ago.
But Benfica, who lost 2-1 to Chelsea in the Europa League final last month, are digging their heels in and demanding a massive fee.