I don't think, Arsenal will experience any challenges they experienced last season that made them not to lift any title through out the season because of the poor performance. I believe Arsenal coach will do everything possible in this summer to work on some of their players to ensure they maintain a good stand in this season to bring progress to the team. If Arsenal strikers can demonstrate what they displayed to defeated their opponent 5-3 in their pre-season match few days ago, show that they will not allow any team to disgrace them in the UEFA champions league competition because they have what it takes to embrace the title in this season.
After few years we have Arsenal in better shape with as they are working in transfer window for the strength of their team look like now they are having fair chance for the better result and their new recruited players can bring better results which will help them for having another challenging year in Premier League and in Champions League most chances they will be not had any problem for the having spot into knockout round because they are strong team which is capable of having better results against opponents.
With most chances their main target could be to have fight hard for the title in Premier League because in last season they lost this in last few rounds, but this time things are looking much better, and they can do good to challenge for the titleholder as well.
Barcelona manager Xavi Hernandez also made comments about Arsenal and Mikel Arteta. It was a friendly game but they didn't play like it was a friendly. They played to win and was very strong than Xavi Hernandez expected.
After so many years of trying and failing this season is another to see how they will progress after so much absence from one of the biggest games in all of Europe. The lose of Gabriel Jesus to Injury will affect them at the start of the new season but he will be back. Nketiah will sure fill in well until Gabriel returns but he is not matured enough to lead Arsenals attacking force. He misses a lot of chance.