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.
The 28-year-old’s absence leaves Spurs very short in central midfield, with Lucas Bergvall also currently injured, and there is no timeframe on his return yet.
James Maddison ruptured his anterior cruciate ligament in pre-season and Dejan Kulusevski is another long-term absentee with a knee injury, which he suffered in April.
Manager Thomas Frank said last week that the club should know in three to four weeks when Kulusevski will be fit to return.
Tottenham did initially ask Atletico about a straight loan deal but were told that was not on the table.
Games are coming thick and fast for Spurs, who face midweek matches in three of the next four weeks in addition to a fixture each weekend.
They are back in action against West Ham United on Saturday in the Premier League before travelling to Dortmund for a Champions League clash a week on Tuesday.
