Arteta has highlighted Nwaneri's talent, attitude, and the supportive environment around him as key factors for his potential rise in the team.
"We must ensure his development is gradual and well-structured, but we are confident in his abilities," Arteta expressed to BBC Sport.
Nwaneri has already demonstrated his potential with two goals in a 5-1 win against Bolton in the previous round of the competition, and he continued to impress in the recent match.
Nwaneri has made four appearances off the bench in the Premier League this season, featuring against teams such as Tottenham, Leicester, Bournemouth, and Liverpool.
In September 2022, Nwaneri made history as the youngest player ever to play in the Premier League, coming on against Brentford at just 15 years and 181 days old.
Arteta believes that Nwaneri's growth will be self-paced, stating, "His development is in his hands, but I am very pleased with his progress."
"He has a strong personality, he seeks to take control, he desires every ball, and he wants to make a difference."
"His respect for the game is evident, his work ethic is outstanding, and his passion for football is clear. He is showing us his capabilities daily."
“You can see his teammates trust him, they pass to him frequently, which is a positive sign. We certainly have a promising player on our hands."
