Mikel Arteta decided to drop both Martin Odegaard and Gabriel Magalhaes to the bench. Kai Havertz and Emile Smith Rowe came into the midfield with further changes in the way of Jorginho also making way.
Auston Trusty returned to face his former club. Meanwhile, Bukayo Saka captains the side from the start in the Premier League for the very first time.
Eddie Nketiah would give the Gunners the lead in the first half. Declan Rice spotted the striker with a glorious pass into the box, the striker beating Trusty and then slotting the ball past Wes Foderingham.
The striker doubled his tally early in the second period, smashing in from a corner. Then he completed his hat-trick with a strike from range which flew into the top left hand corner.