Olympique Lyon president Jean-Michel Aulas has told Tottenham they must get serious if they want to sign Tanguy Ndombele.
Aulas admits talks between the two clubs have continued after Spurs' last offer.
He told RC: "If I wait another eight days, it will be 80 million ... Tottenham made us a first proposal to 45 million. Since then, we have talked.
"There is nothing done, I can assure you. We are not in a hurry either. Tanguy has demonstrated his qualities in the France team. He is one of our best players. How much is he worth? I do not know but more than 45 million."
