Tottenham are close to agreeing a fee with Janssen's current club AZ Alkmaar, after seeing a £15m bid rejected for the forward last week.
Janssen allegedly has his heart set on a move to White Hart Lane and was disappointed when AZ Alkmaar rejected Spurs' original offer, but it now looks likely that he will join the north London club.
Janssen scored 27 goals in 34 games in the Eredivisie last season and has three goals in five appearances for the Netherlands.
Will Spurs get this one across the line?