Mikel Arteta has urged Arsenal not to panic after their Champions League defeat to Borussia Dortmund.
While Arteta admits Arsene Wenger's men are in a tough group, he does not believe that Tuesday night's defeat will derail their campaign.
"It's going to be tough," he told ITV1. "We knew that it was probably the toughest group in the Champions League, we don't think any different now.
"We are still capable of going through but we are disappointed to lose the game.
"I think we played some really good stuff and we were unlucky to concede the goal when I thought we were playing the better football."
