I was expecting Arsenal to win but I thought it might be a different kind of match. The goal came early. Altay Bayındır made a huge mistake. Amorim said about Onana that he's not injured, he just wanted to give chances to those who prepared better in pre-season. In my opinion he can't continue the season with Altay. On Arsenal's side we saw the saves Raya made. Every good team needs a good goalkeeper. Arsenal started well, hopefully they continue the same way.
I also think Arsenal deserved the win, if not for anything at least for the fact that they were able get the first goal on the home ground of the opponent, nevertheless the mistake that led to the goal wasn't the fault of the goalkeeper but negligence on the side of the Manchester United players (defenders) who couldn't protect their goalkeeper from being distracted by the arsenal players.