AC Milan face a battle to keep hold of midfielder Suso.
Marca says Villarreal are chasing Suso's signature this week.
The Yellow Submarine see Suso as a replacement for Denis Cheryshev, who is set to stay with Real Madrid this season.
However, Milan will be reluctant to lose the youngster after M'Baye Niang's injury.
Suso only joined Milan in January from Liverpool.