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.
It should be Raya. he's blocked so many goal attempts by MU. They might concede at least three goals if Raya was not perform. His role is very important in that game.
Yes, you are right, both teams were under a lot of pressure in the last match. In terms of attack, neither team was inferior to the other.
Arsenal's defense was strong, but Raya was their best defense. MU was able to attack repeatedly through such a strong defense. But Raya did not let their attack succeed. Even such strong strikers could not do anything in front of his great play. If Raya was not there in the last match, the result of the game would have been very different. MU could have scored 4/5 goals against Arsenal. But we all know that the strong are against the strong. Raya needs to be as active as he is for the whole season. Only then will Arsenal become an undefeated team.