The Dutch full back is down the pecking order at the Premier League club.
Per the Evening Standard, he will look to leave this summer if he does not get guarantees about playing time next season.
The paper also believes that it is Feyenoord who will look to re-sign him and bring him back to the Netherlands.
The 29-year-old is behind Kiko Femenia in the squad at Watford, which meant that he did not get much playing time.
The defender may want to move to a bigger league, but he would be happy to return to Dutch football if the opportunity is a good one.