The best player in this game based on my opinion, is Gabriel and William Saliba. These players were solid in defense and made it difficult for Manchester United to get a goal. Gabriel had an impressive three blocks while Williams was solid with seven clearances. It was a good start for Arsenal as they got three points from a strong team.
A goal in the 13th minute could have secured victory for Arsenal in their first match of the season. I can't believe Manchester United's performance in that match, even though they dominated possession. However, Manchester United's chances in that match failed to translate into a single goal, and this was a truly painful blow for Manchester United in their first match of the season. Amorim must implement much better tactics in the upcoming matches, as this season Manchester United can make a better change and be in a better position.