Enzo Fernandez has been given permission to undergo a medical in Portugal ahead of a possible move to Chelsea

Chelsea target Enzo Fernandez has been given permission to undergo a medical in Portugal.

Benfica have allowed the Argentine to undergo the necessary tests but it’s just a precautionary measure in case a deal can be reached – after previous reports in Portugal he was closer to staying there.

Chelsea remain hopeful they can secure a UK record deal for Fernandez before the 11pm deadline and clearing him for a medical has paved the way for another part of the potential move if an agreement is reached between the two clubs.

Chelsea target Enzo Fernandez has been given clearance by Benfica to undergo a medical in Portugal ahead of a potentially record-breaking £105million move to Stamford Bridge

That comes as Fernandez sits out Benfica’s visit to Arouca tonight, with his omission removing another potential obstacle to his Stamford Bridge move.

sports mail believes the two clubs are in talks while some Benfica officials await the conclusion of discussions before heading out for tonight’s game.

Portuguese media are also reporting that Fernandez is undergoing his Chelsea medicine at the Hospital of Light in Lisbon.

Argentina’s World Cup hero was chased by the west London team for most of the January transfer window, with the move being turned on its head for the midfielder after he was called off and then put back on track.

Chelsea believe a £105m deal can be finalized for the 22-year-old today and fans have claimed to have landed a private jet in Lisbon to complete the transfer.

Sportsmail understand the two clubs are in talks as we discuss a record-breaking £105m British deal

But fans could be worried by reports from Portuguese club Record, who claim that while Fernandez won’t feature for Benfica in tonight’s clash, he is more interested in staying at the club than leaving.

There is still “no agreement” between the two clubs, the report adds, with Benfica “trying everything” to keep him in the Portuguese capital until the end of the season.

Fernandez is “unable” to face Arouca, he adds, as he wasn’t in training on Monday and was only working out in the gym.

The completion of the £105m deal would make Fernandez Britain’s most expensive footballer and strengthen Graham Potter’s squad at a time when the club are struggling at No. 10 and midfielder Jorginho in a £12m move to the United Kingdom rivals Arsenal will lose.

Chelsea have been busy in the transfer window this month and have already secured seven signings – Benoit Badiashile, David Datro Fofana, Andrey Santos, Mykhailo Mudryk, Noni Madueke, Malo Gusto – and Joao Felix on loan.

The Blues have been chasing the midfielder all month and face a race against time to seal the move

Argentina’s World Cup hero has made it clear to Benfica that he wants a new challenge

Having already tracked Felix’s move from Atletico Madrid using flight logs, fans used the same method to apparently track Chelsea’s private jet, which arrived in Lisbon early on deadline day.

Users pointed to data showing a private jet was flying from Farnborough to Lisbon, the same plane Felix chartered to the club’s Cobham training ground earlier this month.

Chelsea had turned down an offer of around £75m plus bonuses for Fernandez earlier in the month.

Fernandez has been very public about his attempts to leave the Portuguese club during the January transfer window – giving the Blues confidence to strike a deal.

The transfer for Fernandez would not only eclipse their own record but also surpass the record-breaking £100m Man City paid Aston Villa for Jack Grealish in 2021.