However, in a potentially huge blow to Arsenal, both from a football and a pride perspective, RMC's Mohamed Bouhafsi has shared information on Twitter about a late Spurs offer for Saliba that eclipses the bid submitted by the Gunners. Arsenal, however, are still confident that the player will keep his word and join the club.
The Gunners were set to secure a 30m euro (£27m) deal for the 18-year-old that was to see him loaned back to the Ligue 1 club next season.More news: Clashes erupt as Hong Kong protest targets Chinese traders
France Under-20 star Saliba must now choose where his future lies - leaving Arsenal sweating on his decision.
Saint-Etienne officials are expected to discuss the deal over the weekend.
Arsenal had delved deep in negotiations for the €30m rated defender but Saint-Étienne were unable to accept the payment structure suggested by Arsenal.More news: House Dems defend Nancy Pelosi amid spat with AOC
Arsenal have had a disappointing transfer window thus far, with approaches for other top priority targets Kieran Tierney and Wilfried Zaha have also been unsuccessful.
Mauricio Pochettino's side are looking to rebuild after reaching the Champions League final last term and have already broken their club record highest transfer fee to sign Tanguy Ndombele for £55m from Lyon.
North London giants Arsenal will reportedly demand €10m (£8.8m) for club skipper Laurent Koscielny after the Frenchman refused to go on the preseason tour of the United States.More news: Brazil president Jair Bolsonaro moves to appoint son as ambassador to US