ADO Den Haag striker Michiel Kramer is attracting interest from England.
Dutch sources say Kramer is being tracked by Premier League and Bundesliga clubs this season and will leave ADO over the summer.
Swansea City enjoy close ties with ADO, while scouts from Southampton and Stoke City have been regulars at their Eredivisie games this season.
ADO will seek to sell for around €2.5 million.
Kramer is third in the Eredivisie goalscoring charts behind Manchester United signing Memphis Depay and Luuk de Jong.