The midfielder has a delivery proviso worth €120m (£105m), yet move master Fabrizio Romano reports that the proposition Chelsea has made for him is worth just €85m (£74.7m).
There was a gathering between the authorities of the two clubs on Wednesday evening with expenses and the construction of a potential arrangement examined, yet an understanding still needs to be reached.
Romano reports that Chelsea has not considered paying the £105m discharge condition for the 21-year-old.
Benfica could acknowledge not exactly that discharge provision; however, it would need a huge aggregate in an underlying instalment if they somehow managed to acknowledge a lower sum.
Fernandez returned to activity for Benfica in the Portuguese Primeira Liga on 30 December, beginning in a 3-0 loss at Donning Braga for the association chiefs.
Notwithstanding the absence of arrangement, Portuguese newspaper Record reports that Benfica president Rui Costa has now consented to sell Fernandez, and super-specialist Jorge Mendes has headed out to London to finish exchanges with Chelsea.
The report likewise guarantees that Fernandez told Benfica’s lead trainer Roger Schmidt on Tuesday that his quick need is to join Chelsea.
Talks are supposed to proceed, yet Chelsea, in the meantime, is likewise investigating the chance of marking Shakhtar Donetsk winger Mykhaylo Mudryk in front of the Weapons store.
The Heavy weapons specialists have previously seen their initial proposal for the Ukraine international turned down, with Shakhtar waiting for an expense in the locale of £85m.