The Holland international attracted interest from Premier League clubs over the summer and is being linked with the Gunners ahead of the January market.
Former Gunners star Giovanni van Bronckhorst, now assistant coach at Feyenoord, remarked: "He is very good and strong. It is not for nothing he's a first-choice here and with the Dutch national team. He will make the move to a foreign club in the long term.
"When the time comes and he wants to leave, he will leave the club. We are very happy with him, but we know we cannot compete with the top European clubs."
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