He said: "I have faith in Arsenal finishing fourth because I think their attacking players will cause all the other teams problems - but I am still anxious about the defensive side of things and the way the players start the season under Unai Emery, and grasp what he wants from them, is going to be so crucial".
Kroenke's £550m offer to buy Alisher Usmanov's 30% stake has been accepted, meaning Kroenke will be able to make a compulsory purchase of the remaining shares.
No one needs to be reminded of how Guardiola's team blew everyone out of the title race past year, and they are huge favorites going into this match.
"This morning, I give them [the squad] the official captain".
While not his natural position, the young Englishman impressed despite playing their at times under Wenger last season.
And the former Paris Saint-Germain and Sevilla coach has stressed the importance of Arsenal being on the front foot.
Liverpool finish pre-season by beating Torino
The Reds stormed to victory over the Italians thanks to goals from James Milner, Georginio Wijnaldum, Salah, Daniel Sturridge and Alberto Moreno.
Asked to explain his decision, Emery told the London Evening Standard: "In my career I want leaders in the team - there is the representation for every player and in every time in the season the capacity to do that".
"Today, Nacho Monreal began to train with the team", Emery said. "But we are starting a new way, and a new process", he said.
"I'm not sure because I am going to decide tomorrow [Saturday] on the first 11, but Ainsley is the player who started the last match against Lazio".
He scored five goals during Anderlecht's title-winning campaign in 2016-17 and also played in all 16 of their European games that season, which ended with defeat to Manchester United in the Europa League.
"We want to start well, we want to play and we want to show our quality, our work in this month tactically and with our spirit", he said.
"We only have three players: Carl Jenkinson, David Ospina, and Joel Campbell, with the possibility to leave". Lucas Torreira may be given his Arsenal debut in the Premier League, with Granit Xhaka also helping to provide a defensive shield against a City side capable of running riot.