Wenger said: “We could have won it in the end and I feel a bit frustrated because before the goal they scored it looked to be a foul on Alexander Hleb.
“We were in control, there was not much time left and we could have scored a second on the counter-attack.
“The quality of our performance and our team spirit was absolutely tremendous.”
He added: ” “We had a very young defence and I wanted to give them protection, to not be too open too much. It worked well overall.
“When you look at their age, what they did today was sensational.
“We came to try to win the game and we nearly did that. Don’t forget Chelsea didn’t play last weekend so we had a little physical disadvantage.”