Gabriel Jesus was not unlucky in the match that he did not get a goal. If you watched the match you see that Jesus was dropping deep into the midfield even when Saka was not injured. I didn't actually know why he was dropping deep but I know it's by the instructions of the coach. After Saka left because of injury it continued that way.
Gabriel Jesus worked hard for the match; if you watch the game, you will see the type of work he did in the game; he played from the midfield and provided two assists; goal scoring is one of his priorities, but he is always happy when the team wins even if he does not score. However, near the end of the game, almost all of the team players wanted Gabriel Jesus to score a goal, but he was unlucky and defenders prevented him from doing so.