Chelsea are considering making an offer for Villarreal youngster Marcos Gullón.

Cadena SER says Chelsea have been watching Gullon regularly this season for Villarreal B and also Spain U21.

The London giants are now planning to make a formal bid for the youngster ahead of the January market.

Gullon, 20, has spent his entire career with Villarreal and has been a regular with Spain from U17 through to the U20 age-groups.