I think KDB has not played yet versus Arsenal because still recovering from injury. Even Man city are favored to win because they are playing at home but arsenal is want to continue to dominate and maintain the top of the standings. But arsenal also quite doubtful to win because on the previous match, they lose versus QPR in a trial match, even not many core players have been fielded, but I see Tomiyasu there and can't maintain the winning.
It is not yet known for certain whether Kevin De Bruyne's injury is serious or not. But what is clear is that I hope Kevin De Bruyne does not suffer a serious injury so that he can return to strengthen Manchester City in the crucial match in the fight for first place because this match will determine who will win have more points so that the opportunity to fight for the Premier League title is increasingly wide open. Arsenal was very happy to hear this news because with the absence of key players that Manchester City had when facing them it was a big advantage for Arsenal in taking advantage of the opportunity to get 3 points but because this is Manchester City's home game I don't think Arsenal will be able to win with easy.
The trial match should not be equated with an important Premier League match because the trial match does not have a big impact on Arsenal's condition, they will play more seriously in the Premier League because both of them are fighting for the Premier League title. At least Arsenal does not have any obstacles like Manchester City, therefore Arsenal will play more aggressively, but you need to be aware that Erling Haaland is still at the club who is ready to attack Arsenal's goal.