City's left-back missed nearly the entirety of last season through injury, and his overlapping will bring an extra dimension to City's attacking play.
There could be debuts for Torreira, Sokratis and Leno, as the German is indeed considered as Arsenal's new No.1, ahead of veteran Petr Cech.
What time does the Arsenal vs Manchester City, Premier League match start? Of course, against centre-backs as composed as John Stones and Aymeric Laporte, and a goalkeeper as confident as Ederson, actually winning possession is somewhat hard.
Aguero saw an early second-half strike deflected behind for a corner before Emery brought on Alexandre Lacazette for Aaron Ramsey. Arsenal must watch long balls over the top, however - Aguero has punished them in that manner in the past, particularly in this year's Carabao Cup final.
Victory ensured that Guardiola continues to have the Indian sign over his opposite number, with Sunday's win his seventh in 11 matches against his fellow Spaniard Emery.
Not since 2008-09 has the Premier League title been retained, but it's hard to remember any previous champions looking as dominant as this Manchester City at the start of the following campaign.
Arsenal and Manchester City will meet on Sunday in the Premier League's marquee match of week 1.
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Unai Emery is clearly not afraid to experiment.
Walker, Kompany and Stones should be fit after playing a part in the Community Shield but the likes of Raheem Sterling, De Bruyne and Silva may have to settle for places on the bench.
Catching City isn't the immediate target for the Gunners, who last won the title in 2004.
Emery has also pored over film of Arsenal's woes last season and his pre-season transfer dealings suggest he has already identified the problems that Wenger struggled to resolve.
Arsenal's defensive signings will give their forward players more freedom and Aubameyang is one to exploit this and torment the opposition.
Cech is expected to be handed the armband tomorrow when Manchester City visit the Emirates for the first Arsenal game in 22 years not managed by Arsene Wenger.
Arsenal manager Unai Emery with his players during the International Champions Cup.