Arsenal marched into the fifth round of the FA Cup after defeating Burnley 2-1 at the Emirates on Saturday and manager Arsene Wenger spoke to the media after the game of his side's narrow win.
"We needed to work. At the start it looked like it would be easy because we had a lot of the ball and good opportunities around the box. When it came back to 1-1, it became a different game.
"I think we were a bit shocked and they gained belief. I saw them against Derby and I could see that this is a very efficient, strong team with no weakness. Everything they do is based on efficiency and they’ve shown that today.
"In the second half, I don’t think they created a lot. They had one or two opportunities on the counter-attack but we managed to win the game and we looked quite on control at the end. We needed to keep our focus, our urgency until the last minute.
On Chambers and Alexis’ goals, Wenger has this to say:
"I would say they are two completely different goals. One came from a build up in the final third, where we were patient and moved the ball well, with great finishing from Chambers. He’s quite a good finisher in training. The second one was in transition, coming out quickly from the back and finishing well, with a lot of pace. They were two completely different goals.
Wenger admitted he was hesitant to pick Alexis Sanchez for Saturday's game.
"It was his first start for eight or nine weeks. When I saw Derby against Burnley, I had a little hesitation to pick the three [Alexis, Coquelin, Elneny]. But the fact that we played at home, I thought we could manage to get away with it.
"I was not too much worried about the fitness front because I kept him out two weeks ago and he was already there physically. We had some worries about his muscle but today he came through well and you could see that physically, he is ready.
The Frenchman also commented on Mohamed Elneny’s debut and praised the midfielder's contributions though expects more from the Egyptian.
"I felt he started a bit cautious, played a bit secure. He became more adventurous, he had some good shots on goal. His mobility, his work rate was exceptional and for the rest, he needs to adjust to the power of the game in the Premier League. This was a good welcome today and certainly he has learnt a lot today," Wenger added.