Arsene Wenger was left to rue what might have been as his Arsenal side lost 2-1 to Manchester United on Saturday.
The Gunners had the lions' share of possession at the Emirates Stadium but failed to capitalize as Louis van Gaal's United grabbed maximum points on the road.
After the match, Wenger was critical of his players for being unable to make the most of their ascendency which in the end brought about their worst beginning to a league season in 32 years.
"It's a game that we dominated for 80 per cent of the time and we haven't dominated a game like that against Manchester United for a long time," he said.
"At the end of the day we were not efficient enough in the final third, defensively and we made a mistake at the back which they took advantage of. That's the history of the game. We had plenty of chances. Their keeper is man of the match. That tells you the story of the game.
"Once we were 1-0 down we had of possession in the final third that they had to defend. We missed a few opportunities in the second half, even in the final 20 minutes. At the moment defensively we are a bit naive."
The defeat, their second in a row, forced Arsenal down to eighth on the table while United moved up to fourth with a second victory on the trot.
