The Dutch striker has struggled for goals and form since arriving at White Hart Lane and has now seen his efforts in training called into question
Vincent Janssen has been warned that he needs to “do more” if he is to convince Tottenham head coach Mauricio Pochettino of his worth.
The Netherlands international has endured a tough time in English football since completing an £18.5 million move from AZ Alkmaar in the summer of 2016.
Janssen has just four goals to his name and is yet to score from open play, with all of his strikes thus far coming from the penalty spot.