Arsenal captain Martin Odegaard says they mustn't dwell on defeat at home to West Ham.
The Hammers won 2-0 thanks to goals from Tomas Soucek and former Gunners defender Dino Mavropanos.
Odegaard said: "It's one of those nights. We had a lot of chances and did enough to score some goals, but in the box we were not good enough. We take the good things and learn from the things we didn't do well.
"We created enough and had some big chances. We're together as a team. Its not about some players [not scoring]. We have to improve in front of the goal and it's down to the whole team to do that.
"I guess it was a close call [whether the ball was in play or out for the first goal]. Hopefully they have made the right call there. Still after that we had enough chances to win the game."
On where Arsenal are at the halfway point of the Premier League campaign, he added: "It's not bad. We're up there and fighting. We are aiming to be better every day. We learned a lot from last season and gained some experience, and hopefully we can use that through to the end of this season."