Emery has commented recently that he wants his team to play like City, and he will demand intensity and pressing that was often lacking from his predecessor's teams. We have a lot of players with a lack of condition but we are more than two seasons together and know what to do.
Raheem Sterling scored the opening goal in the first half after easily going past Hector Bellerin and the debuting Matteo Guendouzi before curling a shot past Petr Cech, and Bernardo Silva doubled the lead after the break.
Another starter who might not make the XI is Aaron Ramsey who suffered a calf injury in pre-season.
'Also he has this experience to continue defending our goal. Mesut Ozil enjoyed a largely uncharacteristic game in the final third while City's counterpressing did enough to stifle Arsenal and force them into quicker, unstable progressions.
Unai Emery praised Danny Welbeck for his versatility and said the forward has been training at left-back as Arsenal deal with an injury crisis.
"Today is the first step".
"We are excited. We have a lot of ambition to start [well] on Sunday against the last winners of the Premier League".
Guardiola maintains he has been an advocate of Sterling's importance to City since his own arrival at the Etihad off the back of England's disappointing Euro 201 exit. No way. I don't want to forget that. "The team, for 90 minutes, they ran, they tried, they pushed, but we need to improve all collective and individual aspects", Emery told reporters at his post-match press conference.
Cech made several saves to keep Arsenal in the game but also seemed to struggle a bit when playing with his feet, almost scoring an own goal in the first half when he mishit a back pass from Guendouzi. Torreira is the likeliest candidate to do so against Manchester City.
Emery now has a clear sense of the task he faces, throwing his arms in the air in frustration as the goals were conceded. "Also, Leno is starting with us".
'But he can wait to arrive in this moment'.
Arsenal have turned to Unai Emery to replace Wenger at the north London side following the Frenchman's 22 seasons in charge.
DF Ainsley Maitland-Niles, 6 - With Kolasinac injures and Nacho Monreal not yet ready, the Englishman was called upon to play at full-back.
Emery, meanwhile, will know he has much to do, even before a hard derby with Chelsea next weekend.
"Each match is different", he said.