Arsenal manager Arsene Wenger says his team weren't up to the mental level required last night in their 3-all draw with Anderlecht at the Emirates. Arteta, Sanchez and Oxlade Chamberlain goal gave the Gunners a 3-0 lead after 58 minutes, had they held out for the win they would have guaranteed their spot in the last 16 instead they are second 5 points behind Borusia Dortmund who beat Galatasaray 4-1. The Gunners now meet Swansea at the Liberty stadium, on Sunday in a game you can hear live on Off the Ball, after last nights game Wenger discussed their collapse and overall defensive worries with the press.