Atletico Madrid have reportedly informed Manchester United that Saul Niguez is not for sale.
Recent speculation in Spain claimed that the Red Devils had made a £15m offer for the 21-year-old, who has found the net seven times this season.
However, a source at the Vicente Calderon has told The Mirror: "Saul is not for sale.
"Atleti are in the fight for three titles and need all of their players."
Saul has been capped 15 times by Spain at Under-21 level, but he is yet to turn out for the senior side.
