Arsenal have confirmed they are investigating 'as a matter of urgency' tweets posted on transfer deadline day by Gunners academy coach Mark Arber that suggested he bet on Mesut Ozil's arrival.

Arber, a former professional footballer whose father Bob is an Arsenal scout, boasted on social media he was ITK (In the Know) about Arsenal transfer activity, tweeted: ‘Lovely bit of 14-1 Mesut.’