Nwaneri, Sousa and Walters are likely to feel disappointed as Arteta had hinted the academy products could feature ahead of the game.
“Three big prospects. We want to keep developing players from our system. They deserve to be here," he told reporters. "We want to start to give them some experience because they have the talent to hopefully be very close to us. We will try to give them the opportunity if we can.”
The trio will need to continue to be patient as they wait for their senior debuts and the chance to impress in Arteta's first team.