Porto will reportedly strongly resist any January interest in their 18-year-old midfielder Ruben Neves, who is attracting a host of attention.
The teenager, who is already a full Portugal international, has been strongly linked with a move to both Liverpool and Arsenal.
A recent report claimed that Arsenal had Neves watched during Porto's 2-1 win over Pacos Ferreira at the weekend as the Gunners prepare a January bid.
However, according to The Mirror, Porto will refuse to entertain any offers next month, but could sell in next summer's transfer window if the price is right.
Neves, who is said to be valued in the region of £22m, has already made more than 30 league appearances for his current club.
