Arsenal are on alert as Jan Vertonghen's move to Tottenham is reportedly in danger of falling through.
Vertonghen is keen on securing a move to Tottenham this summer and recently stated that Spurs were his "favourite" of the clubs interested in securing his signature.
According to reports in the Netherlands on Monday, the Belgium international is entitled to a 15 per cent cut of any transfer fee that Tottenham will pay for Ajax for his services.
But according to Dutch newspaper De Telegraaf, Ajax are unwilling to pay the 25-year-old his cut, which has thrown a spanner in the works.
At time of writing, it remains unknown why the Dutch giants are unwilling to make the payment.
Should the deal fall through, Vertonghen is likely to continue playing in Amsterdam next season unless the Gunners make a renewed attempt to sign the centre-back.
Should Arsene Wenger decide against making a bid, or should Vertonghen reject the chance to move to Emirates Stadium, then he would be available on a free transfer in twelve months time when his contract expires.