Mikel Arteta challenged Arsenal to show they have the character to cope with a 3-2 defeat against Manchester United that breathed new life into the Premier League title race.
Lisandro Martinezs own goal put Arsenal ahead before Bryan Mbeumo equalised late in the first half.
Patrick Dorgus superb long-range strike gave United the lead after the interval, only for Mikel Merino to scramble home an Arsenal equaliser in the closing stages.
