The Premier League giants snapped up the young left-back from Real Madrid in 2020 and he has been a regular for the Under-23s over the last 18 months.
His performances have also resulted in the Spaniard training with the first-team squad as well and he has also represented Spain at Under-19 level.
Fernandez is still some way away from making his first-team debut at Old Trafford and Manchester United are considering loaning him out.
And it has been claimed that a club in the second tier of Spanish football are interested in Fernandez.
The 18-year-old defender is being courted by the Spanish side, who want to sign him on loan from the Red Devils.
Manchester United are assessing their options and whether it is the right time to loan out the Spaniard.
Fernandez wants to play first-team football and may be open to a loan move this month if Manchester United are prepared to sanction it.