Arsenal manager Arsene Wenger has admitted that he does not know the details of why the mother of youth player Ainsley Maitland-Niles was reportedly banned from the club's training ground.

Jule Niles is believed to have been involved in a physical altercation with Arsenal's chief negotiator Dick Law during her 17-year-old son's Under-21 match last month.

When asked about the incident, Wenger told reporters: "It is basically a private matter that I don't know really well about because I don't know what happened, but I know Ainsley very well and he has my complete support because he is a good boy and I am sure his mother wants a great future for him and to help him.

"There are some incidents that I don't know well and I don't know why, but the boy has a perfect behaviour inside our club. There are many times in the week with me in training."

Maitland-Niles featured in the Gunners' first team earlier this season by coming off the bench in their 4-1 win over Galatasaray in the Champions League.