Arsene Wenger fears Arsenal 'have forgotten how good they are'

Arsenal manager Arsene Wenger believes his players "have forgotten how good they are", as they prepare to face Schalke in the Champions League on Tuesday.

The Gunners lost to the German side a fortnight ago, while last weekend they were beaten by Manchester United and currently lie sixth in the Premier League.

Defender Bacary Sagna says Arsenal "have to keep focused" if they are to improve this season.