The Scottish club accepted the Black Cats' improved £600,000 bid for the 17-year-old defender, who has attracted a string of Premier League scouts to Tannadice.

But after visiting the Stadium of Light and the club's training facilities, the Scotland Under-19 international has decided to remain north of the border to continue his development.

Souttar has still set his heart on a move to the English top flight.

But for the next 18 months he wants to stay in Scotland, where he is guaranteed first-team football.