Donny van de Beek was brought in for £40million from Ajax but has struggled to nail down a place in Manchester United's first team.
The Dutchman is still settling in and adapting to life in the Premier League but there remain doubts over his ability to make it in the English top flight.
Former Manchester United goalkeeping coach Frans Hoek believes there will be multiple suitors for the midfielder if he cannot establish himself at Old Trafford.
'It is a big transition, from the Eredivisie to the Premier League,' he told Voetbal International.