By Nik Brumsack

Mikel Arteta insists Arsenal’s defence was not solely to blame for Saturday’s defeat against Chelsea.

Both of the visitors’ goals came from set pieces, as first Fernando Torres and then Juan Mata consigned Arsène Wenger’s team to their first loss of the season.

“It’s a hard one to take but we’ve conceded from three set pieces in the last two games. That’s cost us points and it’s not good enough,” said Arteta.

“I don’t think it’s something to do with the defence. It’s about an individual defensive set-up in the game which is a free kick or a corner. Today we haven’t defended well enough and we’ve conceded two goals that have cost us the game.

“It’s everyone’s responsibility. You can’t fault one player on that. We have to clean the lines up quickly and you can’t just allow runners like that in the box.”

Despite Saturday's defeat, Arteta believes there are a lot of plusses to take from Arsenal's start to the season - and is adamant the team will bounce back against Olympiacos on Wednesday.

“We have played probably against some of the best teams in the league and haven’t been battered or overplayed at all,” he said.

“I think we’ve been better than Chelsea in the 90 minutes so that’s very positive. But obviously after a defeat, the first one of the season at home, it hurts.

“We will bounce back because we know how important it is now to get the three points in the Champions League."

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 30 Sep 2012