The game also saw a kick-of delay off 30 minutes due to a failure in the new online ticketing system.
Fans were stuck outside, leading to calls for an investigation. Arteta apologised and expressed gratitude to the referees and Forest for allowing the delay.
Manager’s comments on Timber’s injury
Arteta’s post-match comments focused on Timber’s injury: “The physio and docs looked at him and were happy to continue. Straight away in the second, he made a movement and it felt funny. We will have to assess him.”
Arsenal’s first away game of the campaign will be at Selhurst Park against Crystal Palace on Monday, August 21, followed by a home game against Fulham the subsequent Saturday at the Emirates Stadium.