Ajax coach Frank de Boer wants clarification over Jan Vertonghen's situation.

Tottenham are attempting to strike terms with Ajax over a fee for the defender and De Boer wants a decision made so he can press on in finding a replacement.

"I need clarity so we can begin trying to find a replacement," said De Boer.

Ajax director Henri van der Aat has confirmed he's in talks with Spurs: "They know how much we want for Jan."