Tottenham are threatening Arsenal's plans for St Etienne defender William Saliba.
Spurs are chasing the 18-year-old and are primed to open negotiations with the player.
Arsenal boss Unai Emery's side remain the 18-year-old's preferred destination this summer after agreeing a provisional contract with the club last week, says L'Equipe.
Arsenal will open talks with Saint-Etienne, who are demanding €30m (£27m), and that the player is loaned back to the Stade Geoffroy-Guichard for the entirety of next season.
The Gunners' transfer budget has been restricted this summer to £45m after they failed to qualify for next season's Champions League.