Arsenal manager Arsene Wenger slammed his side’s defending after watching Monaco score three goals at the Emirates in the Champions League.
The Frenchman has already been critical of his defensive department this season when Anderlecht came back from a three-goal deficit to restore parity in the group stage of the competition.
And it was more of the same from the Arsenal defence as they suffer an unexpected heavy defeat against Monaco.
"Congratulations to Monaco, they had a perfect result and played the game they wanted to play," Wenger told reporters after the game.
"On our side, I believe that we missed the chances and we were a bit suicidal defensively. We were not at the level defensively and we were a bit unlucky as well because the first goal is deflected.
"On the second and the third goal we were suicidal. We had the luck to come back to 2-1 but not the right to give away a goal the way we did because that makes our task extremely difficult in the second leg.
"It looks like we have lost our nerve and our rationality on the pitch. The heart took over the head and at that level it doesn't work.
"Mentally we were not ready or sharp enough to get into this game. We paid for it.
"In the first 20 minutes there was enough room to win the game. Monaco are a team who are strong physically with a good physical density and we missed the chances. If you look at the number of chances we missed, at that level you cannot afford that.
"I hope [we were] not [complacent]. I hope not.
"It looks like that when you don't have that kind of sharpness. Anything is possible - it's very difficult to say that straight after the game."