Feyenoord sporting director Martin van Geel admits they could sell Stefan de Vrij this summer.
The Dutch defender is being linked with Lazio and Manchester United.
Van Geel told De Telegraaf: "Stefan is a player who came through our youth academy and played in the first team for five years.
"He played an amazing World Cup and his contract is due to expire in one year.
"If the right club comes along and puts in a good offer, we will definitely look at it."
