Barcelona have confirmed the signing of Dutch defender Mike van Beijnen, the son of Frenkie de Jong's agent Ali Dursun.
Van Beijnen, 20, has signed a two-year deal and will link up with Barca B for preseason. He has a release clause that has been fixed at €100 million.
He has previously represented NAC Breda, PSV Eindhoven and Willem II, where he played alongside De Jong at youth level.
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