Ajax defender Jan Vertonghen was reportedly shown around Tottenham Hotspur's training ground before their final match of the season against Fulham.
The 25-year-old, who has also been linked with Arsenal, could tie up a £13m deal at Spurs as soon as next week, according to The Sun.
The Belgian was understood to be in attendance at Sunday's match, in order to discuss terms over a possible move.
Vertonghen has 36 international caps to his name.