The Eredivisie outfit have already rejected a bid of 1.5million euros from the London club for the former Manchester United player.
Negotiations are still ongoing, but Nevland insists Groningen´s valuation of him is wildly optimistic, saying in Dagblad van het Noorden: "The offer that Fulham made is absolutely high enough. Do I feel angry towards FC Groningen? I don´t want to answer that."
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