Tottenham manager Mauricio Pochettino, his assistant Jesus Perez and head of recruitment Paul Mitchell attended Republic of Ireland against the Netherlands on Friday to watch potential transfer targets.

And Sky sources understand the most notable among them was the Dutch striker Vincent Janssen, who plays for AZ Alkmaar.

Janssen was the top scorer in the Eredivisie last season with 27 goals at just 21 years old, and a new, young centre-forward is of priority to Spurs this summer.

Sources in the Netherlands have told Sky Sports News HQ that Janssen is of interest to a number of Premier League clubs, with Tottenham and Leicester among them, and Janssen is keen on a move to England.

Pochettino, Perez and Mitchell were pictured sitting with Southampton striker Shane Long's agent Pat Dolan, whom they all know well and looks after a number of Republic of Ireland players.

But they were primarily there to watch Janssen, who is a target for Spurs along with the Marseille striker Michy Batshuayi, whom Mitchell recently watched in the French Cup final, and Bournemouth's Callum Wilson.

Sky sources understand that Spurs also want to bolster further attacking-midfield, defensive-midfield and centre-back options in the next transfer window and the Dutch national team have other talented young players including Ajax midfielder Riechedly Bazoer.