Finally, all the football fans have seen what they’ve been waiting for in the Man United vs Arsenal match. I’m pretty sure fans were excited to see how the new signings would perform, but unfortunately, the 0-1 result was disappointing. Arsenal played very calmly and came away with a solid win. Meanwhile, Man United played super aggressively but couldn’t finish their chances well. Cunha had a bunch of great opportunities to score, but he seemed a bit off and couldn’t convert any of them. Still, the loss wasn’t too bad, and Amorim definitely has time to make improvements.
You should already know that Arsenal is not an easy team, even before this season. Both teams have new signings, and the signings at Arsenal are to boost the team's performance, while those of Manchester United aim to revive the team's performance from last season's poor results to a better one.
So I think Arsenal has better chances of defeating Manchester United. I won't use Manchester United's performance against Arsenal to conclude what their performance will be like this season; there are more games to see if there will be a change this season.