Benfica midfielder Enzo Fernandez could move to Chelsea in the January transfer window.
The Blues have been hugely impressed with the midfielder this season, both in club football and at the World Cup.
Fernandez helped his country Argentina win the World Cup in Qatar.
Benfica’s board are unsure whether to accept a massive €100m bid from Chelsea for Fernandez.
The player has a buyout clause that is slightly higher, but that would involve Chelsea paying the entire fee in one lump sum.
The Blues will hope to negotiate a deal with Benfica in installments, but the Portuguese club are reluctant to sell