Olivier Giroud insists Arsenal will not let their defeat to Borussia Dortmund disrupt their superb start to the season.

Robert Lewandowski’s late strike sealed the points for last season’s Champions League finalists, and condemned the Gunners to just their second loss this term.

Giroud - who scored a first-half equaliser - was disappointed with the result, but he expects a positive response against Crystal Palace on Saturday.

We lost but have won almost every game. Just Villa and West Brom [were not victories] so it's not the time to be really worried

Olivier Giroud

“We did well in the first half and came back into the game after a bad start,” he said. “After the first half Dortmund were not as good, maybe tired, and we were really close to scoring a second one. But they kept going and scored on the counter-attack. It's a shame because we could have done much better.

“We finished the game better than them and that's why I'm really disappointed because if we couldn't win the game, we didn't have to lose it - maybe draw. In the Champions League it’s like that, about the details.

“I feel good. I'm used to playing a lot of games and I feel good with my body so touch wood no injuries. Over the years I've got used to playing a lot of games and I'm ok with my body. I don't want to find an excuse.

“We lost but have won almost every game. Just Villa and West Brom [were not victories] so it's not the time to be really worried, but we want to come back on Saturday and win the game.”

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 Rob Kelly 23 Oct 2013