The striker has scored 24 goals in the Portuguese top flight this season to go with the 34 he bagged during the previous campaign.
The 28-year-old’s form made him a target for Newcastle last summer and the Magpies are still interested in him.
And they have been given a boost as, according to Record, Dost is open to leaving Sporting at the end of the season.
The Dutchman is reportedly keen to experience a new challenge elsewhere and England could take his fancy.
Dost’s agent is now set to hold talks with Sporting chiefs in Lisbon before the end of the season.