"But I want to suffer"
Despite the comfortable scoreline the Gunners were stretched at times defensively against a side that drew twice to champions Atletico Madrid last season.
“Their mobility, their quality in above all the first half, I think we suffered in the match. But I want to suffer,” Emery said.
“I want to not find easy matches, like today. Then, in our moments, to show you and show them our possibilities, our quality and our organised moments. I think in the 90 minutes today, the team worked very well," he added.
Young Gun shines
Along with the result, Emile Smith-Rowe’s performance was another positive to take from the evening, as the 18-year-old registered his first goal for the Arsenal first team.
When asked what he likes about the Englishman’s game, Emery said: “A little bit of all the qualities he has: physical, mentality and quality with his right foot. Working in combinations with other players.
“He is humble and he is humble to listen every day in training, in the video analysis and also before the match to continue improving and to keep taking one step more, like today.
Emery also commented on Smith Rowe's ability going forward.
“The last matches he played, for example against Brentford, he had three actions in the opposition boxes and didn’t score. But today, he had two and one was a goal. I think this is one step more for him.”
Selection decisions ahead of Sunday
Another player that performed strongly was Alex Iwobi, who continued his impressive start to the season by setting up Smith-Rowe for his goal.
Emery was asked whether he will feature against Fulham this weekend and whether there will be many changes to the team, with the likes of Pierre-Emerick Aubameyang and Aaron Ramsey expected to return.
“For us, each match is very important to show us and for them to take responsibility, take confidence and take rhythm. Each match is one exam for them. I am very happy with how they are responding on the pitch.
“Alex Iwobi is another player who is the same. When we arrive on the match at Sunday against Fulham, it’s also very important that we decide the best eleven and the players on the bench for continuing together in this way, away at a very good and difficult team like Fulham."
The Gunners take on Fulham at midday on Sunday.