Arsenal manager Arsene Wenger says he needs to see the penalty decision against Manchester City a second time before jumping to conclusions.
Santi Cazorla gave the Gunners the lead after Vincent Kompany fouled Nacho Monreal in the penalty area in what seemed to be a soft decision from referee Mike Dean.
But the Frenchman's initial reaction was that it was the correct decision to take.
"From outside it looked to be a penalty. I would have to see it again, but from the bench it looked a penalty," Wenger said.
"My initial reaction was 'Penalty'. Somebody told me that we were a bit fortunate to get it. I will have to see it again."
The Gunners produced one of their best performances of the season and Wenger says the win will boost the morale and confidence of his players.
"When we scored the first goal it was much easier for us to control them," he said.
"We looked dangerous when we won the ball. We didn't always take advantage of the situations in the final third.
"What is for sure is that it increases the level of belief and confidence in the team, with five very important months in front of us."
Francis Coquelin was full of energy in the Arsenal midfield and the 65-year-old says the Frenchman will feature on a regular basis in the second part of the season.
"I took Francis Coquelin from France at the age of 16 and he is now 24," the Arsenal boss said.
"He has gone through some difficult periods, but he is a learner and I always kept faith in him.
"A few months ago, I told him he had to play, he accepted going down to Charlton and had some convincing performances.
"He came back and I have played him, and he's done very well."
