Tottenham face a struggle to sign transfer target Clinton N'Jie.
The Cameroon international was seen as an alternative to Anthony Martial, who signed a new deal with AS Monaco last week.
Foot01.com report it will take a 'mountain of gold' for Lyon to consider selling the player, as they bid to hold onto their best talents.
Lyon were forced to cash in on Martial to Monaco last summer due to financial difficulty, but have a core of young talent remaining of which N'Jie is a key part.
Alexandre Lacazette, Nabil Fekir and Anthony Lopes are all considered important along with N'Jie and Lyon aim to keep the nucleus of their side together if they are to stand a chance of challenging super-rich PSG for the Ligue 1 title.
Foot01.com confirmed that Tottenham had enquired over the forward, but were told only an offer exceeding his market value will tempt them into a sale.
N'Jie, 21, scored eight goals and provided nine assists in all competitions for Lyon last season.