By Richard Clarke

Arsène Wenger admits that he is struggling to explain his side’s defensive frailties at the moment.

Arsenal conceded three second-half goals to lose to Tottenham at Emirates Stadium on Saturday. It was the third defeat in their last five Premier League games and, in the same spell, they have conceded eight goals.

Afterwards the Frenchman expressed his concern.

“We can switch off at the back,” he said. “We are not there. With five minutes to go you make sure you win your headers when you play at the back and we were caught unfortunately.

“We were 2-0 up and it was all in our hands. It’s a strange coincidence of facts that are very difficult to explain even when you are in the job as long as I am. But to completely lose the focus as much as we did and especially the second goal and third goal are very difficult.

“We wanted to keep the urgency and our defensive tightness alive [in the second half] but straight away when we came out [we conceded]. It’s not the first time that has happened and it is one of our weaknesses. Many times we come out and drop a little bit the urgency when we are ahead. We did not come out and be dominating.”

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 22 Nov 2010