The rising Arsenal star has signed a scholarship deal with the north London club for next season and has already trained with the first-team. The youngster may have an eye on breaking into Mikel Arteta's elite squad after fellow academy player Ethan Nwaneri became the youngest ever Premier League player when he came off the bench at Brentford last season at the age of 15 years, five months and 28 days.
Obi-Martin cannot beat that feat but will be dreaming of a first-team debut at some point. He could be the next success story from the club's much-heralded academy.