The agent of Sporting Lisbon striker Ricky van Wolfswinkel has revealed they're set to discuss new terms.

Such has been the success of Van Wolfswinkel's first season in Portugal that the ex-FC Utrecht forward has attracted serious enquiries from Tottenham and Liverpool in the last fortnight.

Agent Louis Laros said: "Sporting wants to review the contract and that is negotiable for us.

"He has been followed by several clubs, but there is no transfer in progress."