Arsenal manager Mikel Arteta's teenage son Gabriel was pictured in training with the first team.
The youngster, who is only 14, was spotted in a public training session in the United States.
The Gunners are playing several matches in the USA, including against the MLS All Stars.
Per The Mail, Gabriel is not playing any serious part in the club's preseason preparations.
He was milling around for a 15-minute session without directly participating in drills.
Social media pictures show manager Mikel's son facing another coach as several first team players were taking part in physical training.