Conor Gallagher is set to fly to England this morning ahead of a medical with Tottenham later today.
The midfielder is poised to complete a £34.7million move to Spurs from Atletico Madrid although he is yet to agree to formality of personal terms.
Tottenham have stolen a march on Aston Villa, who had proposed a loan with an obligation to buy.
Gallagher's camp are keen to have the deal done before Atletico's Copa del Rey last-16 clash at Deportivo La Coruna on Tuesday evening.
Spurs entered the market for a midfielder after it emerged that Rodrigo Bentancur will miss most of the season with a hamstring injury he sustained in last week's 3-2 Premier League loss at Bournemouth.