Arsenal manager Arsene Wenger slammed his side's defending after watching Anderlecht claw its way back from three goals down to earn a 3-3 draw in Champions League Group D on Tuesday.

The host was 3-0 ahead inside the hour and apparently cruising into the last 16 of the competition for a 15th successive season under the Frenchman when the wheels came off in spectacular fashion at the Emirates.

Instead of shutting up shop, Wenger's side capitulated in worrying fashion, allowing the Belgian champion to hit back with two goals from Anthony Vanden Borre, the second a penalty conceded by Nacho Monreal, before Aleksandar Mitrovic's 90th-minute header left the home crowd stunned.