Hughton is desperate to add more firepower to his struggling front line and van Wolfswinkel becomes the third striker Norwich will have bid for this month.
The Canaries have already been turned down with big money bids for Celtic’s Gary Hooper and Swansea’s Danny Graham in January and so Hughton is looking for a major European striker instead.
Van Wolfswinkel has already scored 11 goals this season in an underperforming Sporting side who are struggling to qualify for European competitions next season.
The Dutch international cost Sporting £5million 18 months ago and so will now have seen his value increased with his fine goalscoring record.
However Hughton was able to bid in the region of £10million combined for Hooper and Graham, so the money is clearly available if the player was interested.