Arsenal boss Arsene Wenger insisted that his side had given their best-ever Champions League performance despite being held to a goalless draw at home to CSKA Moscow.
The Gunners missed a number of chances to have secured victory and in the process left themselves with a stiff task to qualify for the knockout stages of the competition.
Wenger said: "We should have won by five, six or even seven.
"People will feel frustrated by the result, but for me it is the best in the Champions League we have played since I've been here.
"Normally, you win this sort of game 7-0, or maybe 7-1 because they had a chance as well, but I still feel there is a lot of positives for the team.
"We were not guilty of trying to score the perfect goal this time. We dominated this team by miles and created clear-cut chances.
"Yet, I still feel that this team has great potential and it is how we mature in the coming months that will decide whether we win a trophy.
"It will be difficult but there are still so many positives for us to take from this performance. I am convinced one day we will play far less well than that and score four, five, six goals.
"We need to keep the belief. It is nothing to do with the new pitch. It is much more simple than that. We need to put the ball in the net."