Saliba joined the Gunners from Ligue 1 aspect Saint-Etienne in July 2019 and was loaned again to the French membership for the 2019-20 season earlier than having additional mortgage spells in Ligue 1 at Good and Marseille.
He made his Arsenal debut in August 2022 and has established himself as a key member of the aspect, making 105 league appearances for the Gunners, scoring six objectives and registering two assists.
“Since becoming a member of us, William has grown a lot, embraced duty, and has created a powerful reference to our supporters and everybody on the membership,” mentioned Arteta.
“We all know there's nonetheless a lot to return from him and can proceed to work collectively to maintain bettering with the clear ambition of profitable main trophies.”
Saliba follows centre-back companion Gabriel Magalhaes, who prolonged his Gunners deal till 2029 in June, in committing to the north London membership.
The announcement of Saliba's new deal comes following a last-gasp win at Newcastle United on Sunday which moved the Gunners second within the Premier League and simply two factors behind leaders Liverpool.
Arsenal sporting director Andrea Berta added: “Within the final three seasons, William has change into an unimaginable defender whose composure, intelligence and bodily presence make him top-of-the-line on the planet.
“He'll proceed his growth with Arsenal to achieve new heights.”
