By Rob Kelly

Arsène Wenger admits his Arsenal side need to improve defensively - but believes the attacking quality on display in England has improved of late.

Having kept clean sheets in their first three games of the season, the Gunners have now kept only one in their last 11 matches.

They conceded five times against Reading in the Capital One Cup on Tuesday night, and Wenger insists they must tighten up at the back.

“[It concerns me] a little bit - when you are 4-0 down in 37 minutes you can't say all is well on that front!” he said.

“You have to give credit as well to the offensive quality in the Premier League, and to the offensive quality of Reading the other night. It is not always about your weaknesses, it is about strengths as well.

“Last night the [Chelsea v Manchester United] game finished 5-4, but it could have been seven as well. Both teams had chances. I believe the offensive quality has improved a lot.

"You see everywhere, people going forward are top class. I believe it’s more down maybe [to] the teams having more creative players. Creative players are a bit less defensive orientated.

"The balance is a bit more in favour of offence. That’s why you see, not only are the defenders a bit more exposed, but as well the quality they face is higher."

While Wenger pledged to focus on improving his side’s defensive record, he says there is only so much you can do at the training ground.

“It is not only down to work, we worked last year as well,” he said. “People forget that last year we were the team with the least shots against us in the league.

“We have always worked defensively. It is not just because you don't work that you concede goals.”

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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 1 Nov 2012