Mikel Arteta handed Ethan Nwaneri his first Premier League start on Sunday.
The Gunners travelled across town to face party poppers Brentford and the visitors showed their class.
Goals from Gabriel Jesus, Fabio Vieira and William Saliba were enough to take Arsenal back to the top of the Premier League.
Aged just 15 years and 181 days old, the Nigerian became the youngest ever player to play in the Premier League.
As per Sky Sports, the midfielder, aged just 15 years and 181 days old, took the Premier League record from Liverpool midfielder Harvey Elliott, who made his English top-flight bow for Fulham aged 16 years and 30 days in May 2019.
“It was a pure gut feeling, I met the kid and I liked what I saw” said Arteta when asked why he handed such a young midfielder his debut.
Nwaneri played just for three minutes, haven come on in the 87th minute.