Tottenham are continuing their pursuit of Sporting Lisbon's Pedro Porro and Marcus Edwards.
However, the Portuguese giants are continuing to block any transfers unless the players' buy-out clauses are met.
Porro, 23, has a £40m buy-out clause while Edwards, the former Spurs trainee, has a £52m clause but the club still hold a 50 per cent sell-on as part of his previous transfer.
Spurs have been left thin in attack after injuries to both Richarlison and Dejan Kulusevski, with just Harry Kane and Son Heung-min left of their first-choice options.