Aston Villa are tracking ADO Den Haag pair Danny Bakker and Martin Hansen.
ADO goalkeeper Hansen and midfielder Bakker have both been watched regularly by Villa scouts this year, says Voetbal International.
ADO coach Henk Fraser is aware of the interest and says: "Martin has become an important factor and feels good in place.
"As for Danny, he's a player with a lot of potential, multi-functional and complete."
Hansen is a former Liverpool junior.