By Chris Harris

Arsène Wenger admits that this week's hotly-anticipated clash with Barcelona has been a distraction for his players.

Tuesday's decisive leg at the Nou Camp has lurked in the background ever since Arsenal came from behind to record a stunning 2-1 victory over Pep Guardiola's side at Emirates Stadium nearly three weeks ago.

Since then Wenger's squad have had big games in three domestic competitions, most recently Saturday's 0-0 draw with Sunderland in the Premier League. But the Frenchman concedes that it has been difficult to forget about the Champions League.

"It has been a little bit in the heads of the players," said Wenger. "It's always subconscious but I still feel that, especially in the second half [against Sunderland], we did enough to win the game but it didn't work."

Now of course there is only one fixture on everyone's mind - the chance to avenge last season's Quarter-Final defeat to the Catalan giants. Arsenal take a slender advantage into Tuesday's second leg but Wenger will urge his team to chase more goals and not just sit on their lead.

"We've not enough security to sit back and defend. You can't go to Barcelona, play for a 0-0 and not try to score. It's also not the personality of this team. We'll try to score when we get the ball back."

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 7 Mar 2011