Newcastle have already raided French football, with Mapou Yanga-Mbiwa signed, Mathieu Debuchy signed, Massaido Haidara incoming, along with Yoan Gouffran, while Moussa Sissoko should land in the summer, although this month remains a possibility.
The Dutchman has impressed in Portuguese football since being snapped up by the Lisbon giants in the summer of 2011 from Utrecht, for the bargain fee of €5.4M.
Sporting Lisbon are thought ready to part with the 23-year-old, but only for the figure of €12M, which Newcastle have not yet offered.
It remains to be seen if the Magpies will increase their bid.
Van Wolfswinkel’s contract at Sporting Lisbon runs until 2016.