Arsenal are set to confirm their second signing of this transfer window.
The Gunners - who are expected to be busy strengthening the squad which finished fifth in the Premier League as well as losing the Europa League Final last season - have so far only managed to bring in one player. That was Brazil wonderkid Gabriel Martinelli from Ituano. 
The Brazilian will be joined by William saliba from Saint-Etienne at Arsenal. The Gunners are expected to pay a £27 Million fee for the 18 year old who will then sign a 5 year contract upon finalizing the deal.

As per previous reports, Saliba won't be playing for the Gunners next season. Instead he will be heading back to Saint-Etienne to continue his development.