The defender has had a slow start to his career in England, managing just the one competitive Premier League Two appearance for the Gunners.
Saliba was signed by Arsenal in the summer of 2019 and loaned back to Saint Etienne for the past season. Brought to London for this campaign, Saliba was left out of Arsenal's Europa League squad, though was registered for the Premier League last week.
Despite his absence, former St Etienne teammate Harold Moukoudi is confident Saliba has what is needed to succeed in England. Moukoudi had a loan spell last season in England with Championship outfit Middlesbrough. He is now back with ASSE.
He told Goal via Fotboll Transfers: "With the qualities he has, I'm sure he will take the chance when he gets it.
"He has enormous potential and he will succeed, I am sure of that."
Moukoudi isn't alone in being convinced Saliba will eventually make it with Arsenal.
Saint Etienne coach Claude Puel, while disappointed to have lost Saliba over the summer, made a glowing tribute to the youngster when it was confirmed he would be formally joining the Gunners for the new season.
Ahead of last term's French Cup final against PSG, in an online video message organised by the club, Puel paid tribute to Saliba: “I would have loved for you, and appreciated that you could finish the season. Play this final.
"(But) all the best, as they say over there. You're going to have a great season and become a great player there.
"We'll meet again."
- updated October 27