Gyökeres had a truly disappointing start to the season with Arsenal. He wasn't effective at all against Manchester United and didn't play well for Arsenal at all. That's why the manager substituted him in the 59th minute. I can't criticize him for that, as he doesn't look ready yet. It seems like it'll take some time for him to get ready for the tough competition of the Premier League.
Agree.. We did not see a good performance from Gyokeres in this match. Even though Arsenal won the match , their overall performance was not that good. Arsenal won the match due to decent match tactics and the great performance of goalkeeper Raya. Raya performed the best in the Arsenal squad in this match. He made a total of 7 saves. On the other hand, the performance of Arsenal's three forwards Martineilli, Gyokeres and saka was disappointing. Even then, Arsenal is very lucky that they were able to earn 3 points.